diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index fa76031fbe6a..5bcd6f330e1f 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -8,7 +8,7 @@ for new features.
 ## Expected behavior and actual behavior.
 
 For example: I expected to be able to open this raster file (with a link to
-the raster file, or it as an attachement) and it returns an error message
+the raster file, or it as an attachment) and it returns an error message
 instead.
 
 ## Steps to reproduce the problem.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 66f6b4f239e8..508a22e9c9de 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -28,7 +28,7 @@ Git workflows with GDAL
 =======================
 
 This is not a git tutorial or reference manual by any means. This just collects
-a few best practice for git usage for GDAL developement.
+a few best practice for git usage for GDAL development.
 
 Commit message
 --------------
@@ -82,7 +82,7 @@ git fetch origin
 git rebase origin/master
 
 # At end of your work, make sure history is reasonable by folding non
-# significant commits into a consistant set
+# significant commits into a consistent set
 git rebase -i master (use fixup for example to merge several commits together)
 
 # push your branch
@@ -92,7 +92,7 @@ From GitHub UI, issue a pull request
 
 If the pull request discussion or Travis-CI/AppVeyor checks require changes,
 commit locally and push. To get a reasonable history, you may need to
-```git rebase -i master```, in whish case you will have to force-push your
+```git rebase -i master```, in which case you will have to force-push your
 branch with ```git push -f my_user_name my_new_feature_branch```
 
 
diff --git a/autotest/cpp/tut/tut_exception.hpp b/autotest/cpp/tut/tut_exception.hpp
index 000bc1b5a7ea..466abdb49cd2 100644
--- a/autotest/cpp/tut/tut_exception.hpp
+++ b/autotest/cpp/tut/tut_exception.hpp
@@ -93,7 +93,7 @@ struct failure : public tut_error
 };
 
 /**
- * Exception to be throwed when test desctructor throwed an exception.
+ * Exception to be thrown when test destructor threw an exception.
  */
 struct warning : public tut_error
 {
diff --git a/autotest/gcore/tiff_ovr.py b/autotest/gcore/tiff_ovr.py
index fd25350b5b90..b0628843006a 100755
--- a/autotest/gcore/tiff_ovr.py
+++ b/autotest/gcore/tiff_ovr.py
@@ -59,7 +59,7 @@ def tiff_ovr_check(src_ds):
             return 'fail'
 
         if ovr_band.Checksum() != 1087:
-            msg = 'overview wrong checkum: band %d, overview 0, checksum = %d,' % (i, ovr_band.Checksum())
+            msg = 'overview wrong checksum: band %d, overview 0, checksum = %d,' % (i, ovr_band.Checksum())
             gdaltest.post_reason(msg)
             return 'fail'
 
@@ -70,7 +70,7 @@ def tiff_ovr_check(src_ds):
             return 'fail'
 
         if ovr_band.Checksum() != 328:
-            msg = 'overview wrong checkum: band %d, overview 1, checksum = %d,' % (i, ovr_band.Checksum())
+            msg = 'overview wrong checksum: band %d, overview 1, checksum = %d,' % (i, ovr_band.Checksum())
             gdaltest.post_reason(msg)
             return 'fail'
     return 'success'
diff --git a/autotest/gcore/tiff_write.py b/autotest/gcore/tiff_write.py
index 9a8a744369ec..7c1f9b2d5a2b 100755
--- a/autotest/gcore/tiff_write.py
+++ b/autotest/gcore/tiff_write.py
@@ -921,7 +921,7 @@ def tiff_write_20():
     md = new_ds.GetMetadata()
     for item in values:
         if item[0] not in md:
-            gdaltest.post_reason('Couldnt find tag %s' % (item[0]))
+            gdaltest.post_reason('Could not find tag %s' % (item[0]))
             return 'fail'
 
         if md[item[0]] != item[1]:
@@ -5614,7 +5614,7 @@ def tiff_write_128():
 
     gdaltest.tiff_drv.Delete('/vsimem/tiff_write_128.tif')
 
-    # Try with explicit CMYK photometric interpreation
+    # Try with explicit CMYK photometric interpretation
     old_val = gdal.GetConfigOption('GDAL_PAM_ENABLED')
     gdal.SetConfigOption('GDAL_PAM_ENABLED', 'NO')
     ds = gdaltest.tiff_drv.CreateCopy('/vsimem/tiff_write_128.tif', src_ds, options=['COMPRESS=JPEG', 'PHOTOMETRIC=CMYK'])
diff --git a/autotest/gdrivers/data/load_postgisraster_test_data.sh b/autotest/gdrivers/data/load_postgisraster_test_data.sh
index 08e6bcd48d08..d8acd21ac66b 100755
--- a/autotest/gdrivers/data/load_postgisraster_test_data.sh
+++ b/autotest/gdrivers/data/load_postgisraster_test_data.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# If you are working in a Linux/Mac enviroment, execute this script with "sh load_postgisraster_test_data"
+# If you are working in a Linux/Mac environment, execute this script with "sh load_postgisraster_test_data"
 # 
 # TODO: a Python version of this script, to have a system-independent script
 # 
@@ -15,7 +15,7 @@
 # configuration file (pg_hba.conf) to allow the user "trust" authentication
 # method. See http://www.postgresql.org/docs/8.4/interactive/auth-pg-hba-conf.html
 
-# CHANGE THIS TO MATCH YOUR ENVIROMENT
+# CHANGE THIS TO MATCH YOUR ENVIRONMENT
 
 SQL_OUTPUT_FILES_PATH=/tmp/gdal-autotest-pgraster
 
diff --git a/autotest/gdrivers/data/test_validate_jp2/byte_corrupted.xml b/autotest/gdrivers/data/test_validate_jp2/byte_corrupted.xml
index 9510da78e52f..f0ecbb7da34b 100644
--- a/autotest/gdrivers/data/test_validate_jp2/byte_corrupted.xml
+++ b/autotest/gdrivers/data/test_validate_jp2/byte_corrupted.xml
@@ -124,9 +124,9 @@
                         <gml:axisName>y</gml:axisName>
                         <gml:origin>
                           <!--<gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::26711">-->
-                          <gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::32631"> <!-- ERROR[GENERAL]: Inconsistant SRS between  ... -->
+                          <gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::32631"> <!-- ERROR[GENERAL]: Inconsistent SRS between  ... -->
                             <!--<gml:pos>440750 3751290</gml:pos>-->
-                            <gml:pos>-440750 -3751290</gml:pos> <!-- ERROR[GENERAL]: Inconsistant geotransform between GeoJP2 ((440720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0)) and GMLJP2 ((-440780.0, 60.0, 0.0, -3751260.0, 0.0, -60.0)) -->
+                            <gml:pos>-440750 -3751290</gml:pos> <!-- ERROR[GENERAL]: Inconsistent geotransform between GeoJP2 ((440720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0)) and GMLJP2 ((-440780.0, 60.0, 0.0, -3751260.0, 0.0, -60.0)) -->
                           </gml:Point>
                         </gml:origin>
                         <gml:offsetVector srsName="urn:ogc:def:crs:EPSG::32631">60 0</gml:offsetVector>
diff --git a/autotest/gdrivers/data/test_validate_jp2/utmsmall_pct_corrupted.xml b/autotest/gdrivers/data/test_validate_jp2/utmsmall_pct_corrupted.xml
index 9a2a82eaca75..62f90a523b8d 100644
--- a/autotest/gdrivers/data/test_validate_jp2/utmsmall_pct_corrupted.xml
+++ b/autotest/gdrivers/data/test_validate_jp2/utmsmall_pct_corrupted.xml
@@ -145,7 +145,7 @@
                         <gml:origin>
                           <gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::26711">
                             <!--<gml:pos>440750 3751290</gml:pos>-->
-                            <gml:pos>40750 3751290</gml:pos> <!-- 'ERROR[INSPIRE_TG, Conformance class A.8.8]: Inconsistant geotransform between OrthoImagery ((440720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0)) and GMLJP2/GeoJP2 ((40720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0))', -->
+                            <gml:pos>40750 3751290</gml:pos> <!-- 'ERROR[INSPIRE_TG, Conformance class A.8.8]: Inconsistent geotransform between OrthoImagery ((440720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0)) and GMLJP2/GeoJP2 ((40720.0, 60.0, 0.0, 3751320.0, 0.0, -60.0))', -->
                           </gml:Point>
                         </gml:origin>
                         <gml:offsetVector srsName="urn:ogc:def:crs:EPSG::26711">60 0</gml:offsetVector>
diff --git a/autotest/gdrivers/grib.py b/autotest/gdrivers/grib.py
index 4bf0413a603a..100bd0def570 100755
--- a/autotest/gdrivers/grib.py
+++ b/autotest/gdrivers/grib.py
@@ -1484,7 +1484,7 @@ def grib_grib2_write_data_encodings_warnings_and_errors():
     return 'success'
 
 ###############################################################################
-# Test writing temperatures with automatic Celcius -> Kelvin conversion
+# Test writing temperatures with automatic Celsius -> Kelvin conversion
 
 
 def grib_grib2_write_temperatures():
diff --git a/autotest/gdrivers/pds4.py b/autotest/gdrivers/pds4.py
index 2798e7ef7c8d..8664d618dcc1 100755
--- a/autotest/gdrivers/pds4.py
+++ b/autotest/gdrivers/pds4.py
@@ -305,7 +305,7 @@ def pds4_9():
     ds = None
 
     filename = '/vsimem/out.xml'
-    # Test copy of all specialConstants and overide noData
+    # Test copy of all specialConstants and override noData
     for frmt in ['RAW', 'GEOTIFF']:
         with hide_substitution_warnings_error_handler():
             gdal.Translate(filename, 'data/byte_pds4.xml', format='PDS4',
diff --git a/autotest/gdrivers/rmf.py b/autotest/gdrivers/rmf.py
index e20bc944892e..2306e6627076 100755
--- a/autotest/gdrivers/rmf.py
+++ b/autotest/gdrivers/rmf.py
@@ -189,7 +189,7 @@ def rmf_11():
             return 'fail'
 
         if ovr_band.Checksum() != ovr_checksum[i]:
-            msg = 'overview wrong checkum: overview %d, checksum = %d,' % \
+            msg = 'overview wrong checksum: overview %d, checksum = %d,' % \
                   (i, ovr_band.Checksum())
             gdaltest.post_reason(msg)
             return 'fail'
@@ -293,7 +293,7 @@ def rmf_build_ov(source, testid, options, ov_sizes, crs, reopen=False, pass_coun
                     return 'fail'
 
                 if ovr_band.Checksum() != crs[iOverview][iBand]:
-                    msg = 'overview wrong checkum: band %d, overview %d, checksum = %d,' % \
+                    msg = 'overview wrong checksum: band %d, overview %d, checksum = %d,' % \
                           (iBand, iOverview, ovr_band.Checksum())
                     gdaltest.post_reason(msg)
                     return 'fail'
diff --git a/autotest/ogr/ogr_cad.py b/autotest/ogr/ogr_cad.py
index 28c407362f4d..c15ab25d0ba6 100755
--- a/autotest/ogr/ogr_cad.py
+++ b/autotest/ogr/ogr_cad.py
@@ -316,7 +316,7 @@ def ogr_cad_4():
     feat = gdaltest.cad_layer.GetNextFeature()
 
     if ogrtest.check_feature_geometry(feat, 'POINT (50 50 0)'):
-        gdaltest.post_reason('got feature which doesnot fit expectations.')
+        gdaltest.post_reason('got feature which does not fit expectations.')
         return 'fail'
 
     gdaltest.cad_ds = None
@@ -345,7 +345,7 @@ def ogr_cad_5():
     feat = gdaltest.cad_layer.GetNextFeature()
 
     if ogrtest.check_feature_geometry(feat, 'LINESTRING (50 50 0,100 100 0)'):
-        gdaltest.post_reason('got feature which doesnot fit expectations.')
+        gdaltest.post_reason('got feature which does not fit expectations.')
         return 'fail'
 
     gdaltest.cad_ds = None
diff --git a/autotest/ogr/ogr_geojson.py b/autotest/ogr/ogr_geojson.py
index 9e17fe6999b3..a8e810cce341 100755
--- a/autotest/ogr/ogr_geojson.py
+++ b/autotest/ogr/ogr_geojson.py
@@ -3732,7 +3732,7 @@ def ogr_geojson_62():
         gdaltest.post_reason('failure')
         return 'fail'
 
-    # crs type=EPSG (not even documented in GJ2008 spec!) tests. Just for coverage completness
+    # crs type=EPSG (not even documented in GJ2008 spec!) tests. Just for coverage completeness
     gdal.OpenEx("""{ "type": "FeatureCollection", "crs": { "type":"EPSG" }, "features":[] }""")
 
     gdal.OpenEx("""{ "type": "FeatureCollection", "crs": { "type":"EPSG", "properties":null }, "features":[] }""")
@@ -3769,7 +3769,7 @@ def ogr_geojson_62():
     with gdaltest.error_handler():
         gdal.OpenEx("""{ "type": "FeatureCollection", "crs": { "type":"link", "properties":{"href": "1"} }, "features":[] }""")
 
-    # crs type=OGC (not even documented in GJ2008 spec!) tests. Just for coverage completness
+    # crs type=OGC (not even documented in GJ2008 spec!) tests. Just for coverage completeness
     gdal.OpenEx("""{ "type": "FeatureCollection", "crs": { "type":"OGC" }, "features":[] }""")
 
     gdal.OpenEx("""{ "type": "FeatureCollection", "crs": { "type":"OGC", "properties":null }, "features":[] }""")
diff --git a/autotest/ogr/ogr_ili.py b/autotest/ogr/ogr_ili.py
index e57bc24e5f26..44dbb785d49b 100755
--- a/autotest/ogr/ogr_ili.py
+++ b/autotest/ogr/ogr_ili.py
@@ -337,7 +337,7 @@ def ogr_interlis1_7():
     feat = lyr.GetNextFeature()
 
     # Interlis 1 Encoding is ISO 8859-1 (Latin1)
-    # Pyton source code is UTF-8 encoded
+    # Python source code is UTF-8 encoded
     field_values = [0, 'äöü', 'ÄÖÜ', '', 1]
 
     if feat.GetFieldCount() != len(field_values):
diff --git a/autotest/ogr/ogr_kml.py b/autotest/ogr/ogr_kml.py
index cfb2b8545790..4060e9d28b09 100755
--- a/autotest/ogr/ogr_kml.py
+++ b/autotest/ogr/ogr_kml.py
@@ -928,7 +928,7 @@ def ogr_kml_read_placemark_with_kml_prefix():
     return 'success'
 
 ###############################################################################
-# Test reading KML with dumplicated folder name
+# Test reading KML with duplicated folder name
 
 
 def ogr_kml_read_duplicate_folder_name():
diff --git a/autotest/ogr/ogr_libkml.py b/autotest/ogr/ogr_libkml.py
index e98df72f1174..2a5c992a017d 100755
--- a/autotest/ogr/ogr_libkml.py
+++ b/autotest/ogr/ogr_libkml.py
@@ -2104,7 +2104,7 @@ def ogr_libkml_read_placemark_with_kml_prefix():
     return 'success'
 
 ###############################################################################
-# Test reading KML with dumplicated folder name
+# Test reading KML with duplicated folder name
 
 
 def ogr_libkml_read_duplicate_folder_name():
diff --git a/autotest/ogr/ogr_shape.py b/autotest/ogr/ogr_shape.py
index 1f57d6403f34..b8f40c559997 100755
--- a/autotest/ogr/ogr_shape.py
+++ b/autotest/ogr/ogr_shape.py
@@ -2131,7 +2131,7 @@ def ogr_shape_50():
     return 'success'
 
 ###############################################################################
-# Test that we can add a field when there's no dbf file initialy
+# Test that we can add a field when there's no dbf file initially
 
 
 def ogr_shape_51():
diff --git a/autotest/utilities/test_ogr2ogr.py b/autotest/utilities/test_ogr2ogr.py
index 00320923e846..2ee98bc22300 100755
--- a/autotest/utilities/test_ogr2ogr.py
+++ b/autotest/utilities/test_ogr2ogr.py
@@ -2745,7 +2745,7 @@ def check_identity_transformation(x, y, srid):
     ds.Destroy()
 
     if ok:
-        # Now, transforming SHP to SHP will have a different definition of the SRS (EPSG:srid) which comes from the previouly saved .prj file
+        # Now, transforming SHP to SHP will have a different definition of the SRS (EPSG:srid) which comes from the previously saved .prj file
         # For angular units in degrees the .prj is saved with greater precision than the internally used value.
         # We perform this additional transformation to exercise the case of units defined with different precision
         gdaltest.runexternal(test_cli_utilities.get_ogr2ogr_path() + " tmp/output_point2.shp tmp/output_point.shp -t_srs EPSG:%(srid)d" % locals())
diff --git a/gdal/NEWS b/gdal/NEWS
index 5ac82b67fff4..b9991f32dfa3 100644
--- a/gdal/NEWS
+++ b/gdal/NEWS
@@ -10,7 +10,7 @@ Trac tickets. GitHub tickets are explicitly indicated with github #XXXX
    - RDA: DigitalGlobe Raster Data Access (read-only)
  * New OGR drivers:
    - MVT: add read/write driver for Mapbox Vector Tile standalone files or tilesets
-   - ESRIJson and TopoJSON: read-only, splitted from existing code of the GeoJSON driver
+   - ESRIJson and TopoJSON: read-only, split from existing code of the GeoJSON driver
    - WFS3: *experimental* read-only driver
  * RFC 68: Make C++11 a build requirement
     https://trac.osgeo.org/gdal/wiki/rfc68_cplusplus11
@@ -1611,7 +1611,7 @@ Shapefile driver:
  * auto-repack by default at dataset closing and FlushCache()/SyncToDisk() time. Controlled by AUTO_REPACK open and layer creation options (that default to YES)
  * generate .dbf end-of-file 0x1A character by default. Add DBF_EOF_CHAR layer creation options / open options to control that behaviour
  * writing: use strerrno() for better error messages (QGIS #13468)
- * change REPACK implementation on Windows to be robust to remaining file descriptors openend on the .shp/.shx/.dbf (#6672, QGIS #15570)
+ * change REPACK implementation on Windows to be robust to remaining file descriptors opened on the .shp/.shx/.dbf (#6672, QGIS #15570)
  * Fix issue in DBFCloneEmpty() one a one field DBF not yet written to disk
  * add call to AutoIdentifyEPSG() when reading a .prj
  * support reading .dbf with substantial padding after last field definition.
@@ -3582,7 +3582,7 @@ GRASS driver:
  * fix compilation issues for GRASS 7
 
 GRIB driver:
- * display temperature unit as deg Celcius in metadata (#3606)
+ * display temperature unit as deg Celsius in metadata (#3606)
 
 GTiff driver:
  * when compiling against internal libtiff, in read-only mode, optimization to
@@ -3592,7 +3592,7 @@ GTiff driver:
  * fix potential issues in gt_citation.cpp / CheckUTM()
  * upgrade internal libtiff to latest CVS
  * implement reading and writing of ICC profiles (#5246)
- * make SetColorInterpretation() round-trip with GetColorInterpreation();
+ * make SetColorInterpretation() round-trip with GetColorInterpretation();
    read color interpretation from PAM if it exists (overrides internal tiff color interpretation);
    set TIFFTAG_PHOTOMETRIC=PHOTOMETRIC_RGB if calling SetColorInterpretation() with R,G,B and no explicit PHOTOMETRIC creation option defined
  * gt_wkt_srs.cpp: fix compilation with external libgeotiff. The file is dependent of quite a few CPL stuff, don't try to pretend otherwise
@@ -3996,7 +3996,7 @@ OSM driver:
  * support relations with more than 2000 members in a OSM XML file (#5055)
  * make the driver work with PBF files produced by osmconvert.
  * osmconf.ini: report the waterway attribute for the lines layer (#5056)
- * add an option in osmconf.ini to enable creating a 'all_tags' field, combining both fields specificaly identified, and other tags
+ * add an option in osmconf.ini to enable creating a 'all_tags' field, combining both fields specifically identified, and other tags
  * always use quoting of key/values in other_tags field (#5096)
  * use alternative implementation of FindNode() that is a bit more efficient when process is CPU-bound
  * fix issue with attribute filtering
@@ -6922,7 +6922,7 @@ Utilities :
     - Add -separate, -allow_projection_difference, -te, -tr, -q, -addalpha options
     - Add -srcnodata and -vrtnodata options (#3254)
     - Add -hidenodata option (#3327)
-    - Avoid accidental overwriting of a non VRT dataset due to revered filename order
+    - Avoid accidental overwriting of a non VRT dataset due to reversed filename order
     - Fix -resolution lowest/highest (#3198)
  * gdaladdo: add -clean option (#2915)
  * gdaladdo: add -q option
@@ -7139,7 +7139,7 @@ JP2KAK (Kakadu) Driver :
    Fixed _WriteTile() lossless 16bit case to avoid improper 32K offset.
    Added support for NBITS image structure metadata, and creation option.
  * Added logic to limit tiles to 64K due to jpeg2000 limitation. (ESRI Merge)
- * Fix offseting of 16U buf32 data (#3027)
+ * Fix offsetting of 16U buf32 data (#3027)
  * Support 16u/16s imagery through DirectRasterIO interface (#3049)
  * Support external overviews as an override to internal overviews
  * Rework jp2kak support to use natural kakadu builds (Windows build)
@@ -7894,7 +7894,7 @@ L1B driver:
  * Added support for NOAA-18(N) and METOP-2 datasets; tiny code refactoring.
  * L1B : add auto guess of data format when it is 2 spaces or empty string
  * The GAC GCPs are not tied to the center of pixel.
- * Serious code rewriting in order to read datasets withour archive header
+ * Serious code rewriting in order to read datasets without archive header
 
 MEM driver:
  * Avoid failure when doing mem_driver->Create('MEM:::')
@@ -8016,7 +8016,7 @@ VRT driver:
  * Use VSIF Large API in VRTDataset::Open to fix #1070
  * recover from failure to create transformer (#2240)
  * Added LUT based transformation support to the VRTComplexSource
- * Extend the output of <SimpleSource> in a forward and backword compatibly way, and make use of GDALProxyPoolDataset when possible
+ * Extend the output of <SimpleSource> in a forward and backward compatible way, and make use of GDALProxyPoolDataset when possible
  * Add the <ColorTableComponent> element to <ComplexSource> to do color table expansion in the VRT
  * Fix failure when attempting to read a warped VRT made from a 3-band dataset with -dstalpha option (#2502)
  * In VRTDerivedRasterBand::IRasterIO() don't call RasterIO() on sources with 0,0 for nPixelSpace and nLineSpace as most sources, except VRTSimpleSource, don't translate them.
diff --git a/gdal/Vagrantfile b/gdal/Vagrantfile
index bdd36227033c..8e1f706a8568 100644
--- a/gdal/Vagrantfile
+++ b/gdal/Vagrantfile
@@ -19,7 +19,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   # these options are also specified by environment variables;
   #   VAGRANT_HTTP_PROXY, VAGRANT_HTTPS_PROXY, VAGRANT_FTP_PROXY
   #   VAGRANT_NO_PROXY, VAGRANT_SVN_PROXY, VAGRANT_GIT_PROXY
-  # if you want to set these on Vagrantfile, edit followings.
+  # if you want to set these on Vagrantfile, edit the following:
   if Vagrant.has_plugin?("vagrant-proxyconf")
     config.proxy.enabled   = false  # true|false
     #config.proxy.http      = "http://192.168.0.2:3128"
diff --git a/gdal/alg/gdalrasterize.cpp b/gdal/alg/gdalrasterize.cpp
index 3d4273f8d485..339d35fbfb68 100644
--- a/gdal/alg/gdalrasterize.cpp
+++ b/gdal/alg/gdalrasterize.cpp
@@ -721,7 +721,7 @@ CPLErr GDALRasterizeGeometries( GDALDatasetH hDS,
     if( eOptim == GRO_Auto )
     {
         eOptim = GRO_Raster;
-        // TODO make more tests with various inputs/outputs to ajust the parameters
+        // TODO make more tests with various inputs/outputs to adjust the parameters
         if( nYBlockSize > 1 && nGeomCount > 10000 && (poBand->GetXSize() * static_cast<long long>(poBand->GetYSize()) / nGeomCount > 50) )
         {
             eOptim = GRO_Vector;
diff --git a/gdal/apps/gdalwarp_lib.cpp b/gdal/apps/gdalwarp_lib.cpp
index 1e9bf4390dee..26ffcbaea344 100644
--- a/gdal/apps/gdalwarp_lib.cpp
+++ b/gdal/apps/gdalwarp_lib.cpp
@@ -2876,9 +2876,9 @@ TransformCutlineToSource( GDALDatasetH hSrcDS, OGRGeometryH hCutline,
                             reinterpret_cast<OGRGeometry*>(hMultiPolygon) );
 
     CPLPushErrorHandler(CPLQuietErrorHandler);
-    const bool bWasValidInitialy = LooseValidateCutline(hMultiPolygon);
+    const bool bWasValidInitially = LooseValidateCutline(hMultiPolygon);
     CPLPopErrorHandler();
-    if( !bWasValidInitialy )
+    if( !bWasValidInitially )
     {
         CPLDebug("WARP", "Cutline is not valid after initial reprojection");
         char *pszWKT = nullptr;
@@ -2893,7 +2893,7 @@ TransformCutlineToSource( GDALDatasetH hSrcDS, OGRGeometryH hCutline,
         const char* pszDensifyCutline = CPLGetConfigOption("GDALWARP_DENSIFY_CUTLINE", "YES");
         if( EQUAL(pszDensifyCutline, "ONLY_IF_INVALID") )
         {
-            bDensify = ( OGRGeometryFactory::haveGEOS() && !bWasValidInitialy );
+            bDensify = ( OGRGeometryFactory::haveGEOS() && !bWasValidInitially );
         }
         else if( CSLFetchNameValue( *ppapszWarpOptions, "CUTLINE_BLEND_DIST" ) != nullptr &&
                  CPLGetConfigOption("GDALWARP_DENSIFY_CUTLINE", nullptr) == nullptr )
@@ -2935,7 +2935,7 @@ TransformCutlineToSource( GDALDatasetH hSrcDS, OGRGeometryH hCutline,
             {
                 const double dfMaxLengthInPixels = GetMaximumSegmentLength(
                                     reinterpret_cast<OGRGeometry*>(hMultiPolygon) );
-                if( bWasValidInitialy )
+                if( bWasValidInitially )
                 {
                     // In some cases, the densification itself results in a reprojected
                     // invalid polygon due to the non-linearity of RPC DEM transformation,
diff --git a/gdal/data/gmlasconf.xml b/gdal/data/gmlasconf.xml
index 8fc6b67b9eac..029dade3637a 100644
--- a/gdal/data/gmlasconf.xml
+++ b/gdal/data/gmlasconf.xml
@@ -25,7 +25,7 @@
             <IncludeGeometryXML>false</IncludeGeometryXML>
             <InstantiateGMLFeaturesOnly>true</InstantiateGMLFeaturesOnly>
         </GML>
-        <!-- 60 for PostgreSQL compatiblity. The maximum is 64 but reserve
+        <!-- 60 for PostgreSQL compatibility. The maximum is 64 but reserve
              some space so that the spatial index name can be formed -->
         <IdentifierMaxLength>60</IdentifierMaxLength>
         <!-- Whether layer and field names should be consider equal in a
diff --git a/gdal/data/gmlasconf.xsd b/gdal/data/gmlasconf.xsd
index 3e67eacdd7cf..5fe83c7a3298 100644
--- a/gdal/data/gmlasconf.xsd
+++ b/gdal/data/gmlasconf.xsd
@@ -489,7 +489,7 @@
               <xs:element name="ProxyAuth" minOccurs="0" type="xs:string">
                 <xs:annotation>
                   <xs:documentation>
-                    Proxy authentification method: one of Basic, NTLM, Digest
+                    Proxy authentication method: one of Basic, NTLM, Digest
                     or Any.
                     Default: none or value of GDAL_PROXY_AUTH
                     configuration option.
@@ -867,7 +867,7 @@
                 <xs:annotation>
                   <xs:documentation>
                     Number of spaces used to indent each level of nesting in
-                    XML ouput.
+                    XML output.
                     Default is 2.
                   </xs:documentation>
                 </xs:annotation>
diff --git a/gdal/doc/grid/src/figures.mp b/gdal/doc/grid/src/figures.mp
index 4611285cdef9..c4f65d6a57c1 100644
--- a/gdal/doc/grid/src/figures.mp
+++ b/gdal/doc/grid/src/figures.mp
@@ -55,7 +55,7 @@ beginfig(1);
 	draw thelabel.lft(btex $radius_2$ etex, .5[z0,z2] rotated a);
 	draw thelabel.rt(btex $angle$ etex, 0.2[z0,z1 rotated .5a]);
 
-	% draw axises
+	% draw axes
 	xr := 40;
 	yr := 40;
 	z11 = (-xr*u,0);
diff --git a/gdal/frmts/ctg/ctgdataset.cpp b/gdal/frmts/ctg/ctgdataset.cpp
index 314a691adbb9..94c939211043 100644
--- a/gdal/frmts/ctg/ctgdataset.cpp
+++ b/gdal/frmts/ctg/ctgdataset.cpp
@@ -376,7 +376,7 @@ int CTGDataset::Identify( GDALOpenInfo * poOpenInfo )
     }
 
 /* -------------------------------------------------------------------- */
-/*      Chech that it looks roughly as a CTG dataset                    */
+/*      Check that it looks roughly as a CTG dataset                    */
 /* -------------------------------------------------------------------- */
     const char* pszData = (const char*)poOpenInfo->pabyHeader;
     for(int i=0;i<4 * 80;i++)
diff --git a/gdal/frmts/elas/elasdataset.cpp b/gdal/frmts/elas/elasdataset.cpp
index 5ac6711034c3..5ee6bba5dfb2 100644
--- a/gdal/frmts/elas/elasdataset.cpp
+++ b/gdal/frmts/elas/elasdataset.cpp
@@ -592,7 +592,7 @@ GDALDataset *ELASDataset::Create( const char * pszFilename,
 
 /* -------------------------------------------------------------------- */
 /*      Now write out zero data for all the imagery.  This is           */
-/*      inefficient, but simplies the IReadBlock() / IWriteBlock() logic.*/
+/*      inefficient, but simplifies IReadBlock() / IWriteBlock() logic. */
 /* -------------------------------------------------------------------- */
     GByte *pabyLine = (GByte *) CPLCalloc(nBandOffset,nBands);
     for( int iLine = 0; iLine < nYSize; iLine++ )
diff --git a/gdal/frmts/georaster/georaster_wrapper.cpp b/gdal/frmts/georaster/georaster_wrapper.cpp
index 7e73b90dc024..0594e700fc8a 100644
--- a/gdal/frmts/georaster/georaster_wrapper.cpp
+++ b/gdal/frmts/georaster/georaster_wrapper.cpp
@@ -1741,7 +1741,7 @@ bool GeoRasterWrapper::InitializeIO( void )
         if( nXSize <= nXBlock && nYSize <= nYBlock )
         {
             // ------------------------------------------------------------
-            // Calculate the size of the singe small blocks
+            // Calculate the size of the single small blocks
             // ------------------------------------------------------------
 
             nCBS = nXSize;
diff --git a/gdal/frmts/grib/degrib/degrib/grib1tab.cpp b/gdal/frmts/grib/degrib/degrib/grib1tab.cpp
index abbad0c5a679..59916bfbac41 100644
--- a/gdal/frmts/grib/degrib/degrib/grib1tab.cpp
+++ b/gdal/frmts/grib/degrib/degrib/grib1tab.cpp
@@ -2368,9 +2368,9 @@ const GRIB1ParmTable parm_table_nceptab_141[256] = {
    /* 156 */ {"var156", "undefined", "-", UC_NONE},
    /* 157 */ {"var157", "undefined", "-", UC_NONE},
    /* 158 */ {"var158", "undefined", "-", UC_NONE},
-   /* 159 */ {"PAR", "Lumped Single-Bond Carbon Specie", "ppbV", UC_NONE},
+   /* 159 */ {"PAR", "Lumped Single-Bond Carbon Species", "ppbV", UC_NONE},
    /* 160 */ {"ETHE", "Ethene", "ppbV", UC_NONE},
-   /* 161 */ {"OLE", "Lumped Double-Bond Carbon Specied Less Ethene", "ppbV", UC_NONE},
+   /* 161 */ {"OLE", "Lumped Double-Bond Carbon Species Less Ethene", "ppbV", UC_NONE},
    /* 162 */ {"TOL", "Toluene", "ppbV", UC_NONE},
    /* 163 */ {"XYL", "Xylene", "ppbV", UC_NONE},
    /* 164 */ {"ISOP", "Isoprene", "ppbV", UC_NONE},
diff --git a/gdal/frmts/grib/degrib/degrib/metaname.cpp b/gdal/frmts/grib/degrib/degrib/metaname.cpp
index e579f7213417..ce1d88d9ccb9 100644
--- a/gdal/frmts/grib/degrib/degrib/metaname.cpp
+++ b/gdal/frmts/grib/degrib/degrib/metaname.cpp
@@ -559,7 +559,7 @@ typedef struct {
 
 typedef struct {
     const char *GRIB2name, *NDFDname;
-} NDFD_AbrevOverideTable;
+} NDFD_AbrevOverrideTable;
 
 /* *INDENT-OFF* */
 /* Updated based on:
@@ -1672,7 +1672,7 @@ static const GRIB2ParmTable *Choose_GRIB2ParmTable (int prodType, int cat,
 }
 
 /* *INDENT-OFF* */
-static const NDFD_AbrevOverideTable NDFD_Overide[] = {
+static const NDFD_AbrevOverrideTable NDFD_Override[] = {
    /*  0 */ {"TMP", "T"},
    /*  1 */ {"TMAX", "MaxT"},
    /*  2 */ {"TMIN", "MinT"},
@@ -2769,11 +2769,11 @@ static void ElemNamePerc (uChar mstrVersion, uShort2 center, uShort2 subcenter,
          /* Check for NDFD over-rides. */
          if (IsData_NDFD (center, subcenter) ||
              IsData_MOS (center, subcenter)) {
-            for (i = 0; i < (sizeof (NDFD_Overide) /
-                             sizeof (NDFD_AbrevOverideTable)); i++) {
-               if (strcmp (NDFD_Overide[i].GRIB2name, table[subcat].name) ==
+            for (i = 0; i < (sizeof (NDFD_Override) /
+                             sizeof (NDFD_AbrevOverrideTable)); i++) {
+               if (strcmp (NDFD_Override[i].GRIB2name, table[subcat].name) ==
                    0) {
-                  mallocSprintf (name, "%s%02d", NDFD_Overide[i].NDFDname,
+                  mallocSprintf (name, "%s%02d", NDFD_Override[i].NDFDname,
                                  percentile);
                   if (lenTime > 0) {
                      if (timeRangeUnit == 3) {
@@ -3039,12 +3039,12 @@ static void ElemNameNorm (uChar mstrVersion, uShort2 center, uShort2 subcenter,
                *convert = table[subcat].convert;
                return;
             }   
-            for (i = 0; i < (sizeof (NDFD_Overide) /
-                             sizeof (NDFD_AbrevOverideTable)); i++) {
-               if (strcmp (NDFD_Overide[i].GRIB2name, table[subcat].name) ==
+            for (i = 0; i < (sizeof (NDFD_Override) /
+                             sizeof (NDFD_AbrevOverrideTable)); i++) {
+               if (strcmp (NDFD_Override[i].GRIB2name, table[subcat].name) ==
                    0) {
-                  *name = (char *) malloc (strlen (NDFD_Overide[i].NDFDname) + 1);
-                  strcpy (*name, NDFD_Overide[i].NDFDname);
+                  *name = (char *) malloc (strlen (NDFD_Override[i].NDFDname) + 1);
+                  strcpy (*name, NDFD_Override[i].NDFDname);
                   *comment = (char *) malloc (strlen (table[subcat].comment) + 1);
                   strcpy (*comment, table[subcat].comment);
                   mallocSprintf (unit, "[%s]", table[subcat].unit);
diff --git a/gdal/frmts/grib/frmt_grib.html b/gdal/frmts/grib/frmt_grib.html
index 82228e9e9295..9ef4643b8aad 100644
--- a/gdal/frmts/grib/frmt_grib.html
+++ b/gdal/frmts/grib/frmt_grib.html
@@ -73,7 +73,7 @@ <h2>Configuration options</h2>
 <ul>
 <li>GRIB_NORMALIZE_UNITS=YES/NO : (GDAL >= 1.9.0) Default to YES.
 Can be set to NO to avoid gdal to normalize units to metric.
-By default (GRIB_NORMALIZE_UNITS=YES), temperatures are reported in degree Celcius (&#x00B0;C).
+By default (GRIB_NORMALIZE_UNITS=YES), temperatures are reported in degree Celsius (&#x00B0;C).
 With GRIB_NORMALIZE_UNITS=NO, they are reported in degree Kelvin (&#x00B0;K).</li>
 </ul>
 </p>
@@ -286,13 +286,13 @@ <h3>Data units</h3>
 <p>Internally GRIB stores values in the units of the international system
 (ie Metric system). So temperatures must be stored as Kelvin degrees.
 But on the reading side of the driver, fields with temperatures are exposed in
-Celcius degrees (unless the GRIB_NORMALIZE_UNITS configuration option is set to
+Celsius degrees (unless the GRIB_NORMALIZE_UNITS configuration option is set to
 NO). For consistency, the writing side of the driver also assumed
 that temperature (detected if the first value of a product definition template,
 ie the <i>Parameter category</i> is 0=Temperature) values in the input dataset
-will be in Celcius degrees, and will automatically offset them to Kelvin degrees.
+will be in Celsius degrees, and will automatically offset them to Kelvin degrees.
 It is possible to control that behaviour by setting the <b>INPUT_UNIT</b> creation
-option to C (for Celcius) or K (for Kelvin). The default is C.</p>
+option to C (for Celsius) or K (for Kelvin). The default is C.</p>
 
 <h3>GRIB2 to GRIB2 conversions</h3>
 
diff --git a/gdal/frmts/grib/gribcreatecopy.cpp b/gdal/frmts/grib/gribcreatecopy.cpp
index 8560c755a398..8d7aca6e90be 100644
--- a/gdal/frmts/grib/gribcreatecopy.cpp
+++ b/gdal/frmts/grib/gribcreatecopy.cpp
@@ -786,7 +786,7 @@ float* GRIB2Section567Writer::GetFloatData()
         m_fMin = m_fMax = static_cast<float>(m_dfNoData);
     }
 
-    // We chech that the actual range of values got from the above RasterIO
+    // We check that the actual range of values got from the above RasterIO
     // request does not go over the expected range of the datatype, as we
     // later assume that for computing nMaxBitsPerElt. 
     // This shouldn't happen for well-behaved drivers, but this can still
@@ -2101,7 +2101,7 @@ static float ComputeValOffset(int nTokens, char** papszTokens,
                 fValOffset = 273.15f;
                 CPLDebug("GRIB",
                          "Applying a %f offset to convert from "
-                         "Celcius to Kelvin",
+                         "Celsius to Kelvin",
                          fValOffset);
             }
             else if( !EQUAL(pszInputUnit, "K") )
diff --git a/gdal/frmts/gtiff/frmt_gtiff.html b/gdal/frmts/gtiff/frmt_gtiff.html
index 678b79b90554..8f7d2d27552f 100644
--- a/gdal/frmts/gtiff/frmt_gtiff.html
+++ b/gdal/frmts/gtiff/frmt_gtiff.html
@@ -220,7 +220,7 @@ <h2>Sparse files</h2>
 <h2>Raw mode</h2>
 
 <p>For some TIFF formulations that have "odd" photometric color spaces, on-the-fly
-deconding as RGBA is done. This might not be desirable in some use cases.
+decoding as RGBA is done. This might not be desirable in some use cases.
 This behaviour can be disabled by prefixing the filename with GTIFF_RAW:</p>
 
 <p>For example to translate a CMYK file to another one :</p>
diff --git a/gdal/frmts/hdf4/hdf-eos/GDapi.c b/gdal/frmts/hdf4/hdf-eos/GDapi.c
index de3fa68333d5..12b74148c7f6 100644
--- a/gdal/frmts/hdf4/hdf-eos/GDapi.c
+++ b/gdal/frmts/hdf4/hdf-eos/GDapi.c
@@ -519,7 +519,7 @@ GDcreate(int32 fid, const char *gridname, int32 xdimsize, int32 ydimsize,
 	    /* --------------------- */
 	    status = -1;
 	    strcpy(errbuf,
-		   "No more than %d grids may be open simutaneously");
+		   "No more than %d grids may be open simultaneously");
 	    strcat(errbuf, " (%s)");
 	    HEpush(DFE_DENIED, "GDcreate", __FILE__, __LINE__);
 	    HEreport(errbuf, NGRID, gridname);
@@ -806,7 +806,7 @@ GDattach(int32 fid, const char *gridname)
 	    /* --------------------- */
 	    gridID = -1;
 	    strcpy(errbuf,
-		   "No more than %d grids may be open simutaneously");
+		   "No more than %d grids may be open simultaneously");
 	    strcat(errbuf, " (%s)");
 	    HEpush(DFE_DENIED, "GDattach", __FILE__, __LINE__);
 	    HEreport(errbuf, NGRID, gridname);
@@ -9983,7 +9983,7 @@ GDinterpolate(int32 gridID, int32 nValues, float64 lonVal[], float64 latVal[],
 		    {
 
 			/*
-			 * Algorithm taken for Numerical Recipies in C, 2nd
+			 * Algorithm taken for Numerical Recipes in C, 2nd
 			 * edition, Section 3.6
 			 */
 
diff --git a/gdal/frmts/hdf4/hdf-eos/SWapi.c b/gdal/frmts/hdf4/hdf-eos/SWapi.c
index 3fce955221c9..cb5a69c48034 100644
--- a/gdal/frmts/hdf4/hdf-eos/SWapi.c
+++ b/gdal/frmts/hdf4/hdf-eos/SWapi.c
@@ -419,7 +419,7 @@ SWcreate(int32 fid, const char *swathname)
 	    /* --------------------- */
 	    status = -1;
 	    strcpy(errbuf,
-		   "No more than %d swaths may be open simutaneously");
+		   "No more than %d swaths may be open simultaneously");
 	    strcat(errbuf, " (%s)");
 	    HEpush(DFE_DENIED, "SWcreate", __FILE__, __LINE__);
 	    HEreport(errbuf, NSWATH, swathname);
@@ -776,7 +776,7 @@ SWattach(int32 fid, const char *swathname)
 	    /* --------------------- */
 	    swathID = -1;
 	    strcpy(errbuf,
-		   "No more than %d swaths may be open simutaneously");
+		   "No more than %d swaths may be open simultaneously");
 	    strcat(errbuf, " (%s)");
 	    HEpush(DFE_DENIED, "SWattach", __FILE__, __LINE__);
 	    HEreport(errbuf, NSWATH, swathname);
@@ -5794,7 +5794,7 @@ SWdefboxregion(int32 swathID, float64 cornerlon[], float64 cornerlat[],
 		/* --------------------------------------------- */
 
 		/*
-		 * Transisition points will have flag value (+1) start or
+		 * Transition points will have flag value (+1) start or
 		 * (255 = (uint8) -1) stop of region
 		 */
 		for (i = edge[0]; i > 0; i--)
@@ -6421,7 +6421,7 @@ SWregionindex(int32 swathID, float64 cornerlon[], float64 cornerlat[],
 		/* --------------------------------------------- */
 
 		/*
-		 * Transisition points will have flag value (+1) start or
+		 * Transition points will have flag value (+1) start or
 		 * (255 = (uint8) -1) stop of region
 		 */
 		for (i = edge[0]; i > 0; i--)
diff --git a/gdal/frmts/hdf4/hdf4imagedataset.cpp b/gdal/frmts/hdf4/hdf4imagedataset.cpp
index 870cbfc08bdf..d39a997224bd 100644
--- a/gdal/frmts/hdf4/hdf4imagedataset.cpp
+++ b/gdal/frmts/hdf4/hdf4imagedataset.cpp
@@ -2481,7 +2481,7 @@ int HDF4ImageDataset::ProcessSwathGeolocation( int32 hSW, char **papszDimList )
         else if( eProduct == PROD_ASTER_L1B
                  || eProduct == PROD_ASTER_L2 )
         {
-            // Constuct the metadata keys.
+            // Construct the metadata keys.
             // A band number is taken from the field name.
             const char *pszBand = strpbrk( pszFieldName, "0123456789" );
 
diff --git a/gdal/frmts/hfa/hfacompress.cpp b/gdal/frmts/hfa/hfacompress.cpp
index af88f3919555..7a870e377fdc 100644
--- a/gdal/frmts/hfa/hfacompress.cpp
+++ b/gdal/frmts/hfa/hfacompress.cpp
@@ -133,7 +133,7 @@ GUInt32 HFACompress::valueAsUInt32( GUInt32 iPixel )
     else
     {
         // Should not get to here.  Check in compressBlock() should return false
-        // if we can't compress this blcok because we don't know about the type.
+        // if we can't compress this block because we don't know about the type.
         CPLError(CE_Failure, CPLE_FileIO,
                  "Imagine Datatype 0x%x (0x%x bits) not supported",
                  m_eDataType,
diff --git a/gdal/frmts/ilwis/ilwiscoordinatesystem.cpp b/gdal/frmts/ilwis/ilwiscoordinatesystem.cpp
index b6e469f3cd21..87a17d186edb 100644
--- a/gdal/frmts/ilwis/ilwiscoordinatesystem.cpp
+++ b/gdal/frmts/ilwis/ilwiscoordinatesystem.cpp
@@ -561,14 +561,14 @@ CPLErr ILWISDataset::ReadProjection( const std::string& csyFileName )
              STARTS_WITH_CI(pszProj.c_str(), "Plate Rectangle"))
     {
         // set 0.0 for CenterLat for Plate Carree projection
-        // skipp Latitude_Of_True_Scale for Plate Rectangle projection definition
+        // skip Latitude_Of_True_Scale for Plate Rectangle projection definition
         oSRS.SetProjCS(pszProj.c_str());
         oSRS.SetEquirectangular( padfPrjParams[5], padfPrjParams[6],
                                  padfPrjParams[3], padfPrjParams[4] );
     }
     else if( STARTS_WITH_CI(pszProj.c_str(), "PolyConic") )
     {
-        // skipp scale factor
+        // skip scale factor
         oSRS.SetProjCS("PolyConic");
         oSRS.SetPolyconic( padfPrjParams[5], padfPrjParams[6],
                            padfPrjParams[3], padfPrjParams[4] );
diff --git a/gdal/frmts/ingr/IngrTypes.h b/gdal/frmts/ingr/IngrTypes.h
index 92ecdf707931..a60a2715b47c 100644
--- a/gdal/frmts/ingr/IngrTypes.h
+++ b/gdal/frmts/ingr/IngrTypes.h
@@ -207,7 +207,7 @@ typedef enum {
 } INGR_ColorTableType;
 
 //  ----------------------------------------------------------------------------
-//    Environ-V Color Tables Entrie
+//    Environ-V Color Tables Entry
 //  ----------------------------------------------------------------------------
 
 struct vlt_slot
@@ -219,7 +219,7 @@ struct vlt_slot
 };
 
 //  ----------------------------------------------------------------------------
-//    IGDS Color Tables Entrie
+//    IGDS Color Tables Entry
 //  ----------------------------------------------------------------------------
 
 struct igds_slot
diff --git a/gdal/frmts/ingr/IntergraphBand.cpp b/gdal/frmts/ingr/IntergraphBand.cpp
index c3167e133486..3727392416cd 100644
--- a/gdal/frmts/ingr/IntergraphBand.cpp
+++ b/gdal/frmts/ingr/IntergraphBand.cpp
@@ -109,7 +109,7 @@ IntergraphRasterBand::IntergraphRasterBand( IntergraphDataset *poDSIn,
     nDataOffset = nBandOffset + 2 + ( 2 * ( hHeaderOne.WordsToFollow + 1 ) );
 
     // --------------------------------------------------------------------
-    // Get Color Tabel from Color Table Type (CTV)
+    // Get Color Table from Color Table Type (CTV)
     // --------------------------------------------------------------------
     uint32 nEntries = hHeaderTwo.NumberOfCTEntries;
 
diff --git a/gdal/frmts/kea/keaband.cpp b/gdal/frmts/kea/keaband.cpp
index 22fae33e9a1e..ebc2f0d15103 100644
--- a/gdal/frmts/kea/keaband.cpp
+++ b/gdal/frmts/kea/keaband.cpp
@@ -101,7 +101,7 @@ KEARasterBand::~KEARasterBand()
     CSLDestroy(this->m_papszMetadataList);
     if( this->m_pszHistoBinValues != nullptr )
     {
-        // histgram bin values as a string
+        // histogram bin values as a string
         CPLFree(this->m_pszHistoBinValues);
     }
     // delete any overview bands
diff --git a/gdal/frmts/mrf/marfa.h b/gdal/frmts/mrf/marfa.h
index 05d6bf146e4c..119bccafee21 100644
--- a/gdal/frmts/mrf/marfa.h
+++ b/gdal/frmts/mrf/marfa.h
@@ -173,7 +173,7 @@ typedef struct ILImage {
     GDALColorInterp ci;
 } ILImage;
 
-// Delarations of utility functions
+// Declarations of utility functions
 
 /**
  *
diff --git a/gdal/frmts/mrf/mrf_util.cpp b/gdal/frmts/mrf/mrf_util.cpp
index 450874bf01c8..85af4ef3ba38 100644
--- a/gdal/frmts/mrf/mrf_util.cpp
+++ b/gdal/frmts/mrf/mrf_util.cpp
@@ -239,12 +239,12 @@ CPLString getFname(CPLXMLNode *node, const char *token, const CPLString &in, con
         return getFname(in, def);
     size_t slashPos = fn.find_first_of("\\/");
 
-    // Does it look like an absolute path or we wont't find the basename of in
+    // Does it look like an absolute path or we won't find the basename of 'in'
     if (slashPos == 0                               // Starts with slash
         || (slashPos == 2 && fn[1] == ':')          // Starts with disk letter column
         || !(slashPos == fn.find_first_not_of('.')) // Does not start with dots and then slash
         || EQUALN(in,"<MRF_META>",10)               // XML string input
-        || in.find_first_of("\\/") == in.npos)      // We can't get a basename from in
+        || in.find_first_of("\\/") == in.npos)      // We can't get a basename from 'in'
         return fn;
 
     // Relative path, prepand the path from the in file name
diff --git a/gdal/frmts/netcdf/frmt_netcdf.html b/gdal/frmts/netcdf/frmt_netcdf.html
index d47df4c2218a..dfcb5e51931e 100644
--- a/gdal/frmts/netcdf/frmt_netcdf.html
+++ b/gdal/frmts/netcdf/frmt_netcdf.html
@@ -216,7 +216,7 @@ <h2>Georeference</h2>
 
 <h2>Open options</h2>
 
-The followin open options are available:
+The following open options are available:
 <ul>
 <li> <b>HONOUR_VALID_RANGE</b>=YES/NO: (GDAL &gt; 2.2) Whether to set to nodata pixel values
 outside of the validity range indicated by valid_min, valid_max or valid_range
diff --git a/gdal/frmts/png/libpng/pngconf.h b/gdal/frmts/png/libpng/pngconf.h
index 03b5e6966538..492379046d05 100644
--- a/gdal/frmts/png/libpng/pngconf.h
+++ b/gdal/frmts/png/libpng/pngconf.h
@@ -43,7 +43,7 @@
 /*
  * Added at libpng-1.2.8
  *
- * If you create a private DLL you need to define in "pngusr.h" the followings:
+ * If you create a private DLL you need to define "pngusr.h" as follows:
  * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
  *        the DLL was built>
  *  e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
diff --git a/gdal/frmts/usgsdem/CDED.notes b/gdal/frmts/usgsdem/CDED.notes
index 62f88bf668ea..5ec74796b388 100644
--- a/gdal/frmts/usgsdem/CDED.notes
+++ b/gdal/frmts/usgsdem/CDED.notes
@@ -49,7 +49,7 @@ Offset Length Name                    Notes
 
   786    24   Rotation Angle          Hardcoded to "0".
 
-  810     6   Accurancy Code          Hardcoded to "0"
+  810     6   Accuracy Code           Hardcoded to "0"
 
   816    36   Spatial Resolution      X/Y generated, Z hardcoded to 1.0.
 
diff --git a/gdal/frmts/usgsdem/usgsdem_create.cpp b/gdal/frmts/usgsdem/usgsdem_create.cpp
index 637f84b0d54b..8810b0852343 100644
--- a/gdal/frmts/usgsdem/usgsdem_create.cpp
+++ b/gdal/frmts/usgsdem/usgsdem_create.cpp
@@ -552,7 +552,7 @@ static int USGSDEMWriteARecord( USGSDEMWriteInfo *psWInfo )
     TextFillR( achARec + 786, 24, "0.0" );
 
 /* -------------------------------------------------------------------- */
-/*      Accurancy code for elevations. 0 means there will be no C       */
+/*      Accuracy code for elevations. 0 means there will be no C        */
 /*      record.                                                         */
 /* -------------------------------------------------------------------- */
     TextFillR( achARec + 810, 6, "0" );
@@ -649,7 +649,7 @@ static int USGSDEMWriteARecord( USGSDEMWriteInfo *psWInfo )
         TextFillR( achARec + 888, 2, "1" );
 
 /* -------------------------------------------------------------------- */
-/*      Horizonal Datum                                                 */
+/*      Horizontal Datum                                                */
 /*      1 = NAD27                                                       */
 /*      2 = WGS72                                                       */
 /*      3 = WGS84                                                       */
diff --git a/gdal/frmts/vrt/vrtderivedrasterband.cpp b/gdal/frmts/vrt/vrtderivedrasterband.cpp
index 2639148eac28..b4ff53700f19 100644
--- a/gdal/frmts/vrt/vrtderivedrasterband.cpp
+++ b/gdal/frmts/vrt/vrtderivedrasterband.cpp
@@ -1397,7 +1397,7 @@ bool VRTDerivedRasterBand::InitializePython()
 
     // As we don't want to depend on numpy C API/ABI, we use a trick to build
     // a numpy array object. We define a Python function to which we pass a
-    // Python buffer oject.
+    // Python buffer object.
 
     // We need to build a unique module name, otherwise this will crash in
     // multithreaded use cases.
diff --git a/gdal/frmts/xyz/xyzdataset.cpp b/gdal/frmts/xyz/xyzdataset.cpp
index 43ff51d435af..247565ee05fd 100644
--- a/gdal/frmts/xyz/xyzdataset.cpp
+++ b/gdal/frmts/xyz/xyzdataset.cpp
@@ -400,8 +400,8 @@ CPLErr XYZRasterBand::IReadBlock( CPL_UNUSED int nBlockXOff,
         if( poGDS->nDataLineNum != static_cast<GIntBig>(nBlockYOff + 1) * nBlockXSize )
         {
             CPLError(CE_Failure, CPLE_AssertionFailed,
-                     "The file has not the same number of values per "
-                     "line as initialy thought. It must be somehow corrupted");
+                     "The file does not have the same number of values per "
+                     "line as initially thought. It must be somehow corrupted");
             return CE_Failure;
         }
     }
@@ -548,7 +548,7 @@ int XYZDataset::IdentifyEx( GDALOpenInfo * poOpenInfo,
     }
 
 /* -------------------------------------------------------------------- */
-/*      Chech that it looks roughly as a XYZ dataset                    */
+/*      Check that it looks roughly as an XYZ dataset                   */
 /* -------------------------------------------------------------------- */
     const char* pszData
         = reinterpret_cast<const char *>( poOpenInfo->pabyHeader );
diff --git a/gdal/frmts/zmap/zmapdataset.cpp b/gdal/frmts/zmap/zmapdataset.cpp
index bc9ea6a3b359..cfbb1901407a 100644
--- a/gdal/frmts/zmap/zmapdataset.cpp
+++ b/gdal/frmts/zmap/zmapdataset.cpp
@@ -222,7 +222,7 @@ int ZMapDataset::Identify( GDALOpenInfo * poOpenInfo )
         return FALSE;
 
 /* -------------------------------------------------------------------- */
-/*      Chech that it looks roughly as a ZMap dataset                   */
+/*      Check that it looks roughly as a ZMap dataset                   */
 /* -------------------------------------------------------------------- */
     const char* pszData
         = reinterpret_cast<const char *>( poOpenInfo->pabyHeader );
diff --git a/gdal/gcore/gdal.h b/gdal/gcore/gdal.h
index 6442affb0c8a..23aaf099564c 100644
--- a/gdal/gcore/gdal.h
+++ b/gdal/gcore/gdal.h
@@ -225,7 +225,7 @@ const char CPL_DLL *GDALGetPaletteInterpretationName( GDALPaletteInterp );
 
 /* "well known" metadata items. */
 
-/** Metadata item for dataset that indicates the spatial interpreation of a
+/** Metadata item for dataset that indicates the spatial interpretation of a
  *  pixel */
 #define GDALMD_AREA_OR_POINT   "AREA_OR_POINT"
 /** Value for GDALMD_AREA_OR_POINT that indicates that a pixel represents an
diff --git a/gdal/gcore/gdalrasterband.cpp b/gdal/gcore/gdalrasterband.cpp
index b1011394fc4d..d064d1345a40 100644
--- a/gdal/gcore/gdalrasterband.cpp
+++ b/gdal/gcore/gdalrasterband.cpp
@@ -2941,7 +2941,7 @@ CPLErr GDALRasterBand::GetHistogram( double dfMin, double dfMax,
     const double dfNoDataValue = GetNoDataValue( &bGotNoDataValue );
     bGotNoDataValue = bGotNoDataValue && !CPLIsNan(dfNoDataValue);
     // Not advertized. May be removed at any time. Just as a provision if the
-    // old behaviour made sense somethimes.
+    // old behaviour made sense sometimes.
     bGotNoDataValue = bGotNoDataValue &&
         !CPLTestBool(CPLGetConfigOption("GDAL_NODATA_IN_HISTOGRAM", "NO"));
     bool bGotFloatNoDataValue = false;
diff --git a/gdal/generate_vcxproj.bat b/gdal/generate_vcxproj.bat
index 4e8f55433f85..c2bcf7407427 100644
--- a/gdal/generate_vcxproj.bat
+++ b/gdal/generate_vcxproj.bat
@@ -435,7 +435,7 @@ goto :end
         )
     )
     ::  *********************
-    ::  Check if a folde is empty
+    ::  Check if a folder is empty
     ::  *********************
 
     set _find_=1
diff --git a/gdal/gnm/gnmrule.cpp b/gdal/gnm/gnmrule.cpp
index dc4ffe1a2a5f..c6b25adcba7c 100644
--- a/gdal/gnm/gnmrule.cpp
+++ b/gdal/gnm/gnmrule.cpp
@@ -150,7 +150,7 @@ bool GNMRule::ParseRuleString()
     }
 
     // now just test if the value == connects
-    // in future shoult set rule type
+    // in future should set rule type
 
     if(!EQUAL(aTokens[1], GNM_RULEKW_CONNECTS))
     {
diff --git a/gdal/ltmain.sh b/gdal/ltmain.sh
index 147d758abcb4..425b29015d5a 100644
--- a/gdal/ltmain.sh
+++ b/gdal/ltmain.sh
@@ -696,7 +696,7 @@ eval 'func_dirname ()
 #             to NONDIR_REPLACEMENT.
 #             value returned in "$func_dirname_result"
 #   basename: Compute filename of FILE.
-#             value retuned in "$func_basename_result"
+#             value returned in "$func_basename_result"
 # For efficiency, we do not delegate to the functions above but instead
 # duplicate the functionality here.
 eval 'func_dirname_and_basename ()
@@ -1532,7 +1532,7 @@ func_run_hooks ()
 
     case " $hookable_fns " in
       *" $1 "*) ;;
-      *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+      *) func_fatal_error "'$1' does not support hook functions.n" ;;
     esac
 
     eval _G_hook_fns=\$$1_hooks; shift
@@ -1616,7 +1616,7 @@ func_run_hooks ()
 #    }
 #    func_add_hook func_validate_options my_option_validation
 #
-# You'll alse need to manually amend $usage_message to reflect the extra
+# You'll also need to manually amend $usage_message to reflect the extra
 # options you parse.  It's preferable to append if you can, so that
 # multiple option parsing hooks can be added safely.
 
@@ -1649,7 +1649,7 @@ func_options ()
 # All initialisations required before starting the option parse loop.
 # Note that when calling hook functions, we pass through the list of
 # positional parameters.  If a hook function modifies that list, and
-# needs to propogate that back to rest of this script, then the complete
+# needs to propagate that back to rest of this script, then the complete
 # modified list must be put in 'func_run_hooks_result' before
 # returning.
 func_hookable func_options_prep
@@ -5772,7 +5772,7 @@ EOF
         {
           /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
              namespace, but it is not one of the ones we know about and
-             have already dealt with, above (inluding dump-script), then
+             have already dealt with, above (including dump-script), then
              report an error. Otherwise, targets might begin to believe
              they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
              namespace. The first time any user complains about this, we'll
diff --git a/gdal/m4/libtool.m4 b/gdal/m4/libtool.m4
index 10ab2844c4ed..03b57625d750 100644
--- a/gdal/m4/libtool.m4
+++ b/gdal/m4/libtool.m4
@@ -651,7 +651,7 @@ configured by $[0], generated by m4_PACKAGE_STRING.
 
 Copyright (C) 2011 Free Software Foundation, Inc.
 This config.lt script is free software; the Free Software Foundation
-gives unlimited permision to copy, distribute and modify it."
+gives unlimited permission to copy, distribute and modify it."
 
 while test 0 != $[#]
 do
diff --git a/gdal/mkgdaldist.sh b/gdal/mkgdaldist.sh
index a826041b96bc..b1148f3c0c4b 100755
--- a/gdal/mkgdaldist.sh
+++ b/gdal/mkgdaldist.sh
@@ -6,7 +6,7 @@
 
 set -eu
 
-# Doxgen 1.7.1 has a bug related to man pages. See https://trac.osgeo.org/gdal/ticket/6048
+# Doxygen 1.7.1 has a bug related to man pages. See https://trac.osgeo.org/gdal/ticket/6048
 doxygen --version | xargs python -c "import sys; v = sys.argv[1].split('.'); v=int(v[0])*10000+int(v[1])*100+int(v[2]); sys.exit(v < 10704)"
 rc=$?
 if test $rc != 0; then
diff --git a/gdal/ogr/gml2ogrgeometry.cpp b/gdal/ogr/gml2ogrgeometry.cpp
index 8b0095e3d71f..468e07e9f88f 100644
--- a/gdal/ogr/gml2ogrgeometry.cpp
+++ b/gdal/ogr/gml2ogrgeometry.cpp
@@ -632,7 +632,7 @@ static bool ParseGMLCoordinates( const CPLXMLNode *psGeomNode,
 /************************************************************************/
 /*                         GML2FaceExtRing()                            */
 /*                                                                      */
-/*      Identifies the "good" Polygon whithin the collection returned   */
+/*      Identifies the "good" Polygon within the collection returned    */
 /*      by GEOSPolygonize()                                             */
 /*      short rationale: GEOSPolygonize() will possibly return a        */
 /*      collection of many Polygons; only one is the "good" one,        */
diff --git a/gdal/ogr/ogrgeometryfactory.cpp b/gdal/ogr/ogrgeometryfactory.cpp
index bfa331da9f43..1f0e0cb5fe24 100644
--- a/gdal/ogr/ogrgeometryfactory.cpp
+++ b/gdal/ogr/ogrgeometryfactory.cpp
@@ -4155,7 +4155,7 @@ OGRGeometryH OGR_G_ForceToLineString( OGRGeometryH hGeom )
  * (see OGR_GT_GetCollection()) or the reverse. non-linear geometry type to
  * their corresponding linear geometry type (see OGR_GT_GetLinear()), by
  * possibly approximating circular arcs they may contain.  Regarding conversion
- * from linear geometry types to curve geometry types, only "wraping" will be
+ * from linear geometry types to curve geometry types, only "wrapping" will be
  * done. No attempt to retrieve potential circular arcs by de-approximating
  * stroking will be done. For that, OGRGeometry::getCurveGeometry() can be used.
  *
diff --git a/gdal/ogr/ogrsf_frmts/avc/avc_bin.cpp b/gdal/ogr/ogrsf_frmts/avc/avc_bin.cpp
index c1fc3050d566..16e277027661 100644
--- a/gdal/ogr/ogrsf_frmts/avc/avc_bin.cpp
+++ b/gdal/ogr/ogrsf_frmts/avc/avc_bin.cpp
@@ -393,7 +393,7 @@ int _AVCBinReadHeader(AVCRawBinFile *psFile, AVCBinHeader *psHeader,
     int nStatus = 0;
 
     /*-----------------------------------------------------------------
-     * For AVCCoverPC coverages (files without hte .adf extension),
+     * For AVCCoverPC coverages (files without the .adf extension),
      * there is a first 256 bytes header that we just skip and that
      * precedes the 100 bytes header block.
      *
diff --git a/gdal/ogr/ogrsf_frmts/avc/avc_e00read.cpp b/gdal/ogr/ogrsf_frmts/avc/avc_e00read.cpp
index 30dda376af4a..3e01527d3590 100644
--- a/gdal/ogr/ogrsf_frmts/avc/avc_e00read.cpp
+++ b/gdal/ogr/ogrsf_frmts/avc/avc_e00read.cpp
@@ -1877,7 +1877,7 @@ const char *AVCE00ReadNextLine(AVCE00ReadPtr psInfo)
             /*---------------------------------------------------------
              * Finished returning the last lines of the section...
              * proceed to the next section...
-             * OK, I don't really like recursivion, but it was
+             * OK, I don't really like recursion, but it was
              * the simplest way to do this, and anyways we should never
              * have more than one level of recursion.
              *--------------------------------------------------------*/
diff --git a/gdal/ogr/ogrsf_frmts/cad/libopencad/cadobjects.h b/gdal/ogr/ogrsf_frmts/cad/libopencad/cadobjects.h
index 92cb6c867b27..c6fb2b670a9a 100644
--- a/gdal/ogr/ogrsf_frmts/cad/libopencad/cadobjects.h
+++ b/gdal/ogr/ogrsf_frmts/cad/libopencad/cadobjects.h
@@ -397,25 +397,25 @@ class CADBlockObject : public CADEntityObject
 /**
  * @brief The CAD End block Object class
  */
-//TODO: do we need this class? Maybe CADEntityObject enouth?
+//TODO: do we need this class? Maybe CADEntityObject is enough?
 class CADEndblkObject : public CADEntityObject
 {
 public:
     CADEndblkObject();
     virtual ~CADEndblkObject(){}
-    // it actually has nothing more thatn CED and CEHD.
+    // it actually has nothing more than CED and CEHD.
 };
 
 /**
  * @brief The CADSeqendObject class
  */
-//TODO: do we need this class? Maybe CADEntityObject enouth?
+//TODO: do we need this class? Maybe CADEntityObject is enough?
 class CADSeqendObject : public CADEntityObject
 {
 public:
     CADSeqendObject();
     virtual ~CADSeqendObject(){}
-    // it actually has nothing more thatn CED and CEHD.
+    // it actually has nothing more than CED and CEHD.
 };
 
 /**
diff --git a/gdal/ogr/ogrsf_frmts/cad/libopencad/cadtables.cpp b/gdal/ogr/ogrsf_frmts/cad/libopencad/cadtables.cpp
index ef2e5a1e46ba..a845b2a60096 100644
--- a/gdal/ogr/ogrsf_frmts/cad/libopencad/cadtables.cpp
+++ b/gdal/ogr/ogrsf_frmts/cad/libopencad/cadtables.cpp
@@ -183,7 +183,7 @@ int CADTables::ReadLayersTable( CADFile * const pCADFile, long dLayerControlHand
         }
     }
 
-    DebugMsg( "Readed aLayers using LayerControl object count: %d\n",
+    DebugMsg( "Read aLayers using LayerControl object count: %d\n",
               static_cast<int>(aLayers.size()) );
 
     return CADErrorCodes::SUCCESS;
diff --git a/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/io.cpp b/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/io.cpp
index de6ab898290d..3baf71805b19 100644
--- a/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/io.cpp
+++ b/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/io.cpp
@@ -725,8 +725,8 @@ unsigned int CADBuffer::ReadMSHORT()
     unsigned int  result = 0;
     unsigned char aMShortBytes[8]; // 8 bytes is maximum.
 
-    // TODO: this function doesnot support MSHORTS longer than 4 bytes. ODA says
-    //       its impossible, but not sure.
+    // TODO: this function does not support MSHORTS longer than 4 bytes. ODA says
+    //       it's impossible, but not sure.
     size_t MShortBytesCount = 2;
     aMShortBytes[0] = ReadCHAR();
     aMShortBytes[1] = ReadCHAR();
diff --git a/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/r2000.cpp b/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/r2000.cpp
index c46d179bc38c..10f8b426d3c6 100644
--- a/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/r2000.cpp
+++ b/gdal/ogr/ogrsf_frmts/cad/libopencad/dwg/r2000.cpp
@@ -2560,7 +2560,7 @@ CADSplineObject * DWGFileR2000::getSpline(unsigned int dObjectSize,
 #ifdef _DEBUG
     else
     {
-        DebugMsg( "Spline scenario != {1,2} readed: error." );
+        DebugMsg( "Spline scenario != {1,2} read: error." );
     }
 #endif
     for( long i = 0; i < spline->nNumKnots; ++i )
@@ -2784,7 +2784,7 @@ CADLayerObject * DWGFileR2000::getLayerObject(unsigned int dObjectSize,
 
     /*
      * FIXME: ODA says that this handle should be null hard pointer. It is not.
-     * Also, after reading it dObjectSize is != actual readed structure's size.
+     * Also, after reading it dObjectSize is != actual read structure's size.
      * Not used anyway, so no point to read it for now.
      * It also means that CRC cannot be computed correctly.
      */
@@ -3795,7 +3795,7 @@ int DWGFileR2000::ReadSectionLocators()
     // TODO: code can be much simplified if CADHandle will be used.
     pFileIO->Read( & dImageSeeker, 4 );
     // to do so, == and ++ operators should be implemented.
-    DebugMsg( "Image seeker readed: %d\n", dImageSeeker );
+    DebugMsg( "Image seeker read: %d\n", dImageSeeker );
     imageSeeker = dImageSeeker;
 
     pFileIO->Seek( 2, CADFileIO::SeekOrigin::CUR ); // 19
diff --git a/gdal/ogr/ogrsf_frmts/cad/ogrcadlayer.cpp b/gdal/ogr/ogrsf_frmts/cad/ogrcadlayer.cpp
index ccb2185e799c..a31be324b39d 100644
--- a/gdal/ogr/ogrsf_frmts/cad/ogrcadlayer.cpp
+++ b/gdal/ogr/ogrsf_frmts/cad/ogrcadlayer.cpp
@@ -432,7 +432,7 @@ OGRFeature *OGRCADLayer::GetFeature( GIntBig nFID )
 
             /*
              * Excessive check, like in DXF driver.
-             * I tried to make a single-point polyline, but couldnt make it.
+             * I tried to make a single-point polyline, but couldn't make it.
              * Probably this check should be removed.
              */
             if( poCADLWPolyline->getVertexCount() == 1 )
@@ -587,7 +587,7 @@ OGRFeature *OGRCADLayer::GetFeature( GIntBig nFID )
                         dfOgrArcRotation = dfLineDir * 180.0;
 
                     /*
-                     * Tesselate the arc segment and append to the linestring.
+                     * Tessellate the arc segment and append to the linestring.
                      */
                     OGRLineString * poArcpoLS =
                         ( OGRLineString * ) OGRGeometryFactory::approximateArcAngles(
diff --git a/gdal/ogr/ogrsf_frmts/geoconcept/geoconcept.c b/gdal/ogr/ogrsf_frmts/geoconcept/geoconcept.c
index 4c8673ba5063..d9c699eadf07 100644
--- a/gdal/ogr/ogrsf_frmts/geoconcept/geoconcept.c
+++ b/gdal/ogr/ogrsf_frmts/geoconcept/geoconcept.c
@@ -2302,7 +2302,7 @@ static OGRFeatureH GCIOAPI_CALL _buildOGRFeature_GCIO (
     if( CPLListCount(GetMetaTypes_GCIO(Meta))==0 )
     {
       CPLError( CE_Failure, CPLE_AppDefined,
-                "Line %ld, %s%s pragma expected fro type definition before objects dump.",
+                "Line %ld, %s%s pragma expected from type definition before objects dump.",
                 GetGCCurrentLinenum_GCIO(H), kPragma_GCIO, kMetadataFIELDS_GCIO );
     }
     else
diff --git a/gdal/ogr/ogrsf_frmts/geojson/ogrgeojsonwriter.cpp b/gdal/ogr/ogrsf_frmts/geojson/ogrgeojsonwriter.cpp
index 6cd5d77c959b..798094bf76de 100644
--- a/gdal/ogr/ogrsf_frmts/geojson/ogrgeojsonwriter.cpp
+++ b/gdal/ogr/ogrsf_frmts/geojson/ogrgeojsonwriter.cpp
@@ -942,7 +942,7 @@ json_object* OGRGeoJSONWriteGeometry( const OGRGeometry* poGeometry,
 
     OGRwkbGeometryType eFType = wkbFlatten(poGeometry->getGeometryType());
     // For point empty, return a null geometry. For other empty geometry types,
-    // we will generate an empty coordinate array, which is propably also
+    // we will generate an empty coordinate array, which is probably also
     // borderline.
     if( eFType == wkbPoint && poGeometry->IsEmpty() )
     {
diff --git a/gdal/ogr/ogrsf_frmts/gml/drv_gml.html b/gdal/ogr/ogrsf_frmts/gml/drv_gml.html
index c9b556865cae..6b6f430ad771 100644
--- a/gdal/ogr/ogrsf_frmts/gml/drv_gml.html
+++ b/gdal/ogr/ogrsf_frmts/gml/drv_gml.html
@@ -212,7 +212,7 @@ <h2>gml:xlink resolving</h2>
 gml:id relation. At the end of this SQL-based process, a resolved file
 will be generated exactly as in the <b>NONE</b> case but without their limits.
 The main advantages in using an external (temporary) DBMS so to resolve
-gml:xlink and gml:id relations are the followings:<ul>
+gml:xlink and gml:id relations are the following:<ul>
 	<li>no memory size constraints. The <b>NONE</b> method stores the whole
 	   GML node-tree in-memory; and this practically means that no GML
 	   file bigger than 1 GB can be processed at all using a 32-bit
diff --git a/gdal/ogr/ogrsf_frmts/gmlas/ogrgmlasreader.cpp b/gdal/ogr/ogrsf_frmts/gmlas/ogrgmlasreader.cpp
index cfefee057599..2d64768c8706 100644
--- a/gdal/ogr/ogrsf_frmts/gmlas/ogrgmlasreader.cpp
+++ b/gdal/ogr/ogrsf_frmts/gmlas/ogrgmlasreader.cpp
@@ -1000,7 +1000,7 @@ void GMLASReader::PopContext()
 #ifdef DEBUG_VERBOSE
     if( !m_aoStackContext.empty() )
     {
-        CPLDebug("GMLAS", "Poping up context:");
+        CPLDebug("GMLAS", "Popping up context:");
         m_aoStackContext.back().Dump();
     }
 #endif
diff --git a/gdal/ogr/ogrsf_frmts/gpkg/ogrgeopackagetablelayer.cpp b/gdal/ogr/ogrsf_frmts/gpkg/ogrgeopackagetablelayer.cpp
index ec01f1349b49..70c20cfc82f8 100644
--- a/gdal/ogr/ogrsf_frmts/gpkg/ogrgeopackagetablelayer.cpp
+++ b/gdal/ogr/ogrsf_frmts/gpkg/ogrgeopackagetablelayer.cpp
@@ -2753,7 +2753,7 @@ bool OGRGeoPackageTableLayer::CreateSpatialIndex(const char* pszTableName)
     }
     sqlite3_free(pszSQL);
 
-    // Insert entries in RTree by chuncks of 100000
+    // Insert entries in RTree by chunks of 100000
     std::vector<GPKGRTreeEntry> aoEntries;
     GUIntBig nEntryCount = 0;
     const size_t nChunkSize = 100000;
diff --git a/gdal/ogr/ogrsf_frmts/idrisi/ogridrisidatasource.cpp b/gdal/ogr/ogrsf_frmts/idrisi/ogridrisidatasource.cpp
index 61130970b233..9b0c08bebbc2 100644
--- a/gdal/ogr/ogrsf_frmts/idrisi/ogridrisidatasource.cpp
+++ b/gdal/ogr/ogrsf_frmts/idrisi/ogridrisidatasource.cpp
@@ -156,7 +156,7 @@ int OGRIdrisiDataSource::Open( const char * pszFilename )
         eType = wkbPolygon;
     else
     {
-        CPLError( CE_Failure, CPLE_AppDefined, "Unsupport geometry type : %d",
+        CPLError( CE_Failure, CPLE_AppDefined, "Unsupported geometry type : %d",
                   static_cast<int>(chType) );
         VSIFCloseL(fpVCT);
         CSLDestroy( papszVDC );
diff --git a/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmldatasource.cpp b/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmldatasource.cpp
index b8138b0df676..5a54305770f9 100644
--- a/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmldatasource.cpp
+++ b/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmldatasource.cpp
@@ -1236,7 +1236,7 @@ int OGRLIBKMLDataSource::OpenKmz( const char *pszFilename, int bUpdateIn )
                 if( !poKmlLyrRoot )
                 {
                     CPLError( CE_Failure, CPLE_OpenFailed,
-                              "ERROR parseing kml layer %s from %s :%s",
+                              "ERROR parsing kml layer %s from %s :%s",
                               poKmlHref->get_path().c_str(),
                               pszFilename, oKmlErrors.c_str() );
                     delete poKmlHref;
diff --git a/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmllayer.cpp b/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmllayer.cpp
index 0fd1ef83ab9d..2a122a4d610b 100644
--- a/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmllayer.cpp
+++ b/gdal/ogr/ogrsf_frmts/libkml/ogrlibkmllayer.cpp
@@ -370,7 +370,7 @@ OGRLIBKMLLayer::~OGRLIBKMLLayer()
 
  Returns:       The next feature, or NULL if there is no more
 
- This function copyed from the sqlite driver.
+ This function copied from the sqlite driver.
 ******************************************************************************/
 
 OGRFeature *OGRLIBKMLLayer::GetNextFeature()
diff --git a/gdal/ogr/ogrsf_frmts/mitab/mitab_feature_mif.cpp b/gdal/ogr/ogrsf_frmts/mitab/mitab_feature_mif.cpp
index c5402750449e..6b770b40d79c 100644
--- a/gdal/ogr/ogrsf_frmts/mitab/mitab_feature_mif.cpp
+++ b/gdal/ogr/ogrsf_frmts/mitab/mitab_feature_mif.cpp
@@ -109,8 +109,8 @@ static char **MIDTokenize( const char *pszLine, const char *pszDelim )
 /**********************************************************************
  *                   TABFeature::ReadRecordFromMIDFile()
  *
- *  This method is used to read the Record (Attributs) for all type of
- *  feature included in a mid/mif file.
+ *  This method is used to read the Record (Attributes) for all type of
+ *  features included in a mid/mif file.
  *
  * Returns 0 on success, -1 on error, in which case CPLError() will have
  * been called.
@@ -1929,7 +1929,7 @@ int TABText::ReadGeometryFromMIFFile(MIDDATAFile *fp)
                                            fp->GetYTrans(CPLAtof(papszToken[4])));
                     }
                 }
-                // What I do with the XY coordonate
+                // What I do with the XY coordinate
             }
         }
         CSLDestroy(papszToken);
diff --git a/gdal/ogr/ogrsf_frmts/mitab/mitab_mapfile.cpp b/gdal/ogr/ogrsf_frmts/mitab/mitab_mapfile.cpp
index be55ea260606..6d38a0bbfe4a 100644
--- a/gdal/ogr/ogrsf_frmts/mitab/mitab_mapfile.cpp
+++ b/gdal/ogr/ogrsf_frmts/mitab/mitab_mapfile.cpp
@@ -2590,7 +2590,7 @@ TABRawBinBlock *TABMAPFile::GetIndexObjectBlock( int nFileOffset )
  *
  * In Write mode, this function will init an empty the tool def table.
  *
- * Reutrns 0 on success, -1 on error.
+ * Returns 0 on success, -1 on error.
  **********************************************************************/
 int TABMAPFile::InitDrawingTools()
 {
diff --git a/gdal/ogr/ogrsf_frmts/mitab/mitab_utils.cpp b/gdal/ogr/ogrsf_frmts/mitab/mitab_utils.cpp
index 75c89441ba73..ad2663adf0dd 100644
--- a/gdal/ogr/ogrsf_frmts/mitab/mitab_utils.cpp
+++ b/gdal/ogr/ogrsf_frmts/mitab/mitab_utils.cpp
@@ -346,7 +346,7 @@ char **TAB_CSLLoad(const char *pszFname)
  * Convert a string that can possibly contain escaped "\n" chars in
  * into into a new one with binary newlines in it.
  *
- * Tries to work on hte original buffer unless bSrcIsConst=TRUE, in
+ * Tries to work on the original buffer unless bSrcIsConst=TRUE, in
  * which case the original is always untouched and a copy is allocated
  * ONLY IF NECESSARY.  This means that the caller should compare the
  * return value and the source (pszString) to see if a copy was returned,
diff --git a/gdal/ogr/ogrsf_frmts/mssqlspatial/ogr_mssqlspatial.h b/gdal/ogr/ogrsf_frmts/mssqlspatial/ogr_mssqlspatial.h
index bac55976dc02..efe0db716f90 100644
--- a/gdal/ogr/ogrsf_frmts/mssqlspatial/ogr_mssqlspatial.h
+++ b/gdal/ogr/ogrsf_frmts/mssqlspatial/ogr_mssqlspatial.h
@@ -160,7 +160,7 @@ class OGRMSSQLGeometryWriter
     OGRGeometry *poGeom2;
     unsigned char* pszData;
     int nLen;
-    /* serialization propeties */
+    /* serialization properties */
     char chProps;
     /* point array */
     int nPointSize;
diff --git a/gdal/ogr/ogrsf_frmts/mssqlspatial/ogrmssqlspatialtablelayer.cpp b/gdal/ogr/ogrsf_frmts/mssqlspatial/ogrmssqlspatialtablelayer.cpp
index 77d9ebdfae63..4c105f9dce5a 100644
--- a/gdal/ogr/ogrsf_frmts/mssqlspatial/ogrmssqlspatialtablelayer.cpp
+++ b/gdal/ogr/ogrsf_frmts/mssqlspatial/ogrmssqlspatialtablelayer.cpp
@@ -1271,7 +1271,7 @@ int OGRMSSQLSpatialTableLayer::Failed2( int nRetCode )
 int OGRMSSQLSpatialTableLayer::InitBCP(const char* pszDSN)
 
 {
-    /* Create a different connection fro BCP upload */
+    /* Create a different connection for BCP upload */
     if( Failed( SQLAllocHandle( SQL_HANDLE_ENV, NULL, &hEnvBCP ) ) )
     return FALSE;
 
diff --git a/gdal/ogr/ogrsf_frmts/oci/ogrociloaderlayer.cpp b/gdal/ogr/ogrsf_frmts/oci/ogrociloaderlayer.cpp
index b9c0114cdde4..e081a0d5116e 100644
--- a/gdal/ogr/ogrsf_frmts/oci/ogrociloaderlayer.cpp
+++ b/gdal/ogr/ogrsf_frmts/oci/ogrociloaderlayer.cpp
@@ -122,7 +122,7 @@ void OGROCILoaderLayer::WriteLoaderHeader()
         pszGeometryName = "ORA_GEOMETRY";
 
 /* -------------------------------------------------------------------- */
-/*      Dermine our operation mode.                                     */
+/*      Determine our operation mode.                                   */
 /* -------------------------------------------------------------------- */
     const char *pszLDRMode = CSLFetchNameValue( papszOptions, "LOADER_MODE" );
 
diff --git a/gdal/ogr/ogrsf_frmts/sxf/ogrsxfdatasource.cpp b/gdal/ogr/ogrsf_frmts/sxf/ogrsxfdatasource.cpp
index 5507c8165d65..d3917b883dd4 100644
--- a/gdal/ogr/ogrsf_frmts/sxf/ogrsxfdatasource.cpp
+++ b/gdal/ogr/ogrsf_frmts/sxf/ogrsxfdatasource.cpp
@@ -907,7 +907,7 @@ void OGRSXFDataSource::FillLayers()
         bool bHasSemantic = CHECK_BIT(buff[5], 9);
         if (bHasSemantic) //check has attributes
         {
-            //we have already 24 byte readed
+            //we have already 24 byte read
             vsi_l_offset nOffsetSemantic = 8 + buff[2];
             VSIFSeekL(fpSXF, nOffsetSemantic, SEEK_CUR);
         }
diff --git a/gdal/ogr/ogrsf_frmts/vfk/vfkreader.cpp b/gdal/ogr/ogrsf_frmts/vfk/vfkreader.cpp
index e0f3a6e3eb72..4b0c6235699e 100644
--- a/gdal/ogr/ogrsf_frmts/vfk/vfkreader.cpp
+++ b/gdal/ogr/ogrsf_frmts/vfk/vfkreader.cpp
@@ -45,7 +45,7 @@ CPL_CVSID("$Id$")
 static char *GetDataBlockName(const char *);
 
 /*!
-  \brief IVFKReader desctructor
+  \brief IVFKReader destructor
 */
 IVFKReader::~IVFKReader()
 {
diff --git a/gdal/ogr/ogrspatialreference.cpp b/gdal/ogr/ogrspatialreference.cpp
index 63d6be9fa8c4..b23b73bf55c0 100644
--- a/gdal/ogr/ogrspatialreference.cpp
+++ b/gdal/ogr/ogrspatialreference.cpp
@@ -273,7 +273,7 @@ void OGRSpatialReference::Clear()
 /************************************************************************/
 
 /** Assignment operator.
- * @param oSource SRS to assing to *this
+ * @param oSource SRS to assign to *this
  * @return *this
  */
 OGRSpatialReference &
diff --git a/gdal/ogr/wktproblems.html b/gdal/ogr/wktproblems.html
index e0c3361a9090..e13529474e5e 100644
--- a/gdal/ogr/wktproblems.html
+++ b/gdal/ogr/wktproblems.html
@@ -31,7 +31,7 @@ <h2>WKT Implementations</h2>
 system descriptions:<p>
 
 <ul>
-<li> Oracle Spatial (WKT is used internall in MDSYS.WKT, loosely SFSQL based)
+<li> Oracle Spatial (WKT is used internally in MDSYS.WKT, loosely SFSQL based)
 <p>
 <li> ESRI - The Arc8 system's projection engine uses a roughly simple
 features compatible description for projections.  I believe ESRI provided
diff --git a/gdal/port/cpl_minizip_unzip.cpp b/gdal/port/cpl_minizip_unzip.cpp
index d0e190c0d23f..48c8b9a729fa 100644
--- a/gdal/port/cpl_minizip_unzip.cpp
+++ b/gdal/port/cpl_minizip_unzip.cpp
@@ -512,9 +512,9 @@ extern unzFile ZEXPORT cpl_unzOpen2 (const char *path,
     uLong   uL;
 
     uLong number_disk;          /* number of the current dist, used for
-                                   spaning ZIP, unsupported, always 0*/
+                                   spanning ZIP, unsupported, always 0*/
     uLong number_disk_with_CD;  /* number the disk with central dir, used
-                                   for spaning ZIP, unsupported, always 0*/
+                                   for spanning ZIP, unsupported, always 0*/
     uLong64 number_entry_CD;      /* total number of entries in
                                    the central dir
                                    (same than number_entry on nospan) */
diff --git a/gdal/port/cpl_minizip_zip.cpp b/gdal/port/cpl_minizip_zip.cpp
index 48ab00a89cd4..303d78964f2a 100644
--- a/gdal/port/cpl_minizip_zip.cpp
+++ b/gdal/port/cpl_minizip_zip.cpp
@@ -494,9 +494,9 @@ extern zipFile ZEXPORT cpl_zipOpen2 (
         uLong central_pos,uL;
 
         uLong number_disk;          /* number of the current dist, used for
-                                    spaning ZIP, unsupported, always 0*/
+                                    spanning ZIP, unsupported, always 0*/
         uLong number_disk_with_CD;  /* number the disk with central dir, used
-                                    for spaning ZIP, unsupported, always 0*/
+                                    for spanning ZIP, unsupported, always 0*/
         uLong number_entry;
         uLong number_entry_CD;      /* total number of entries in
                                     the central dir
diff --git a/gdal/port/cpl_vsil_simple.cpp b/gdal/port/cpl_vsil_simple.cpp
index 4ec4fa219db3..1270b2e9ae88 100644
--- a/gdal/port/cpl_vsil_simple.cpp
+++ b/gdal/port/cpl_vsil_simple.cpp
@@ -1,7 +1,7 @@
 /******************************************************************************
  *
  * Project:  VSI Virtual File System
- * Purpose:  Alternatve simplified implementation VSI*L File API that just
+ * Purpose:  Alternative simplified implementation VSI*L File API that just
  *           uses plain VSI API and/or posix calls.  This module isn't
  *           normally built into GDAL.  It is for simple packages like
  *           dgnlib.
diff --git a/gdal/port/cpl_vsil_subfile.cpp b/gdal/port/cpl_vsil_subfile.cpp
index 246fc56d6a91..9fd44f112a31 100644
--- a/gdal/port/cpl_vsil_subfile.cpp
+++ b/gdal/port/cpl_vsil_subfile.cpp
@@ -343,8 +343,8 @@ VSISubFileFilesystemHandler::Open( const char *pszFilename,
     }
 
 /* -------------------------------------------------------------------- */
-/*      We can't open the containing file with "w" access, so if tht    */
-/*      is requested use "r+" instead to update in place.               */
+/*      We can't open the containing file with "w" access, so if        */
+/*      that is requested use "r+" instead to update in place.          */
 /* -------------------------------------------------------------------- */
     if( pszAccess[0] == 'w' )
         pszAccess = "r+";
diff --git a/gdal/swig/include/java/typemaps_java.i b/gdal/swig/include/java/typemaps_java.i
index 01fe2e747a4d..5f2be3b967d3 100644
--- a/gdal/swig/include/java/typemaps_java.i
+++ b/gdal/swig/include/java/typemaps_java.i
@@ -1737,7 +1737,7 @@ DEFINE_REGULAR_ARRAY_IN(double, jdouble, GetDoubleArrayElements, ReleaseDoubleAr
   }
 
 /***************************************************
- * Typemaps for Gemetry.GetPoints()
+ * Typemaps for Geometry.GetPoints()
  ***************************************************/
 
 %typemap(in,numinputs=0) (int* pnCount, double** ppadfXY, double** ppadfZ) ( int nPoints = 0, double* padfXY = NULL, double* padfZ = NULL)
diff --git a/gdal/swig/include/python/typemaps_python.i b/gdal/swig/include/python/typemaps_python.i
index ad2aae46755e..cf85221f5ff5 100644
--- a/gdal/swig/include/python/typemaps_python.i
+++ b/gdal/swig/include/python/typemaps_python.i
@@ -1801,7 +1801,7 @@ DecomposeSequenceOfCoordinates( PyObject *seq, int nCount, double *x, double *y,
 
 
 /***************************************************
- * Typemaps for Gemetry.GetPoints()
+ * Typemaps for Geometry.GetPoints()
  ***************************************************/
 %typemap(in,numinputs=0) (int* pnCount, double** ppadfXY, double** ppadfZ) ( int nPoints = 0, double* padfXY = NULL, double* padfZ = NULL )
 {