diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 1cc1f7a..4d885a8 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -24,6 +24,7 @@ Notable enhancements and changes are:
       nosetests with pytest, transition from pep8 to pycodestyle and upgrading
       tools and libraries to more modern versions.
     * :issue:`124` - Implemented :func:`pywincffi.kernel32.file.GetTempPath`
+    * :issue:`123` - Implemented :func:`pywincffi.kernel32.event.SetEvent`
 
 0.4.0
 ~~~~~
diff --git a/pywincffi/core/cdefs/headers/functions.h b/pywincffi/core/cdefs/headers/functions.h
index b62cecd..4c5bcfc 100644
--- a/pywincffi/core/cdefs/headers/functions.h
+++ b/pywincffi/core/cdefs/headers/functions.h
@@ -216,6 +216,11 @@ BOOL WINAPI ResetEvent(
   _In_ HANDLE hEvent
 );
 
+// https://msdn.microsoft.com/en-us/library/ms686211
+BOOL WINAPI SetEvent(
+  _In_ HANDLE hEvent
+);
+
 ///////////////////////
 // Communications
 ///////////////////////
diff --git a/pywincffi/kernel32/__init__.py b/pywincffi/kernel32/__init__.py
index 2013e7a..d1621ba 100644
--- a/pywincffi/kernel32/__init__.py
+++ b/pywincffi/kernel32/__init__.py
@@ -20,7 +20,8 @@
 from pywincffi.kernel32.process import (
     GetProcessId, GetCurrentProcess, OpenProcess, GetExitCodeProcess,
     TerminateProcess, CreateToolhelp32Snapshot, CreateProcess, pid_exists)
-from pywincffi.kernel32.events import CreateEvent, OpenEvent, ResetEvent
+from pywincffi.kernel32.events import (
+    CreateEvent, OpenEvent, ResetEvent, SetEvent)
 from pywincffi.kernel32.comms import ClearCommError
 from pywincffi.kernel32.synchronization import WaitForSingleObject
 from pywincffi.kernel32.overlapped import GetOverlappedResult
diff --git a/pywincffi/kernel32/events.py b/pywincffi/kernel32/events.py
index b513cfe..c6209c9 100644
--- a/pywincffi/kernel32/events.py
+++ b/pywincffi/kernel32/events.py
@@ -125,3 +125,22 @@ def ResetEvent(hEvent):
     _, library = dist.load()
     code = library.ResetEvent(wintype_to_cdata(hEvent))
     error_check("ResetEvent", code=code, expected=NON_ZERO)
+
+
+def SetEvent(hEvent):
+    """
+    Sets the specified event object to the signaled state.
+
+    .. seealso::
+
+        https://msdn.microsoft.com/en-us/library/ms686211
+
+    :param pywincffi.wintypes.HANDLE hEvent:
+        A handle to the event object. The handle must have the
+        ``EVENT_MODIFY_STATE`` access right.
+    """
+    input_check("hEvent", hEvent, HANDLE)
+
+    _, library = dist.load()
+    code = library.SetEvent(wintype_to_cdata(hEvent))
+    error_check("SetEvent", code=code, expected=NON_ZERO)
diff --git a/tests/test_kernel32/test_events.py b/tests/test_kernel32/test_events.py
index 516344b..a6c801e 100644
--- a/tests/test_kernel32/test_events.py
+++ b/tests/test_kernel32/test_events.py
@@ -7,7 +7,8 @@
 from pywincffi.exceptions import WindowsAPIError, InputError
 from pywincffi.kernel32 import events  # used by mocks
 from pywincffi.kernel32 import (
-    CloseHandle, CreateEvent, OpenEvent, ResetEvent, WaitForSingleObject)
+    CloseHandle, CreateEvent, OpenEvent, ResetEvent, WaitForSingleObject,
+    SetEvent)
 
 
 # These tests cause TestPidExists and others to fail under Python 3.4 so for
@@ -108,3 +109,23 @@ def test_resets_event(self):
 
         _, library = dist.load()
         self.assertEqual(WaitForSingleObject(handle, 0), library.WAIT_TIMEOUT)
+
+
+class TestSetEvent(TestCase):
+    """
+    Tests for :func:`pywincffi.kernel32.SetEvent`
+    """
+    def test_signaled(self):
+        handle = CreateEvent(True, False)
+        self.addCleanup(CloseHandle, handle)
+        _, library = dist.load()
+        SetEvent(handle)
+        self.assertEqual(
+            WaitForSingleObject(handle, 0), library.WAIT_OBJECT_0)
+
+    def test_not_signaled(self):
+        handle = CreateEvent(True, False)
+        self.addCleanup(CloseHandle, handle)
+        _, library = dist.load()
+        self.assertEqual(
+            WaitForSingleObject(handle, 0), library.WAIT_TIMEOUT)