diff --git a/cpp/src/arrow/array/array_decimal.h b/cpp/src/arrow/array/array_decimal.h
index c9a0aff1bf36c..b7c8515304863 100644
--- a/cpp/src/arrow/array/array_decimal.h
+++ b/cpp/src/arrow/array/array_decimal.h
@@ -31,7 +31,7 @@ namespace arrow {
 
 /// Template Array class for decimal data
 template<uint32_t width>
-class BaseDecimalArray : public FixedSizeBinaryArray {
+class ARROW_EXPORT BaseDecimalArray : public FixedSizeBinaryArray {
  public:
   using TypeClass = typename DecimalTypeTraits<width>::TypeClass;
   using ValueType = typename DecimalTypeTraits<width>::ValueType;
diff --git a/cpp/src/arrow/array/builder_decimal.h b/cpp/src/arrow/array/builder_decimal.h
index 410bcac235aeb..4c27fc0cf1b64 100644
--- a/cpp/src/arrow/array/builder_decimal.h
+++ b/cpp/src/arrow/array/builder_decimal.h
@@ -31,7 +31,7 @@
 namespace arrow {
 
 template<uint32_t width>
-class BaseDecimalBuilder : public FixedSizeBinaryBuilder {
+class ARROW_EXPORT BaseDecimalBuilder : public FixedSizeBinaryBuilder {
 public:
   using TypeClass = typename DecimalTypeTraits<width>::TypeClass;
   using ArrayType = typename DecimalTypeTraits<width>::ArrayType;
diff --git a/cpp/src/arrow/type.h b/cpp/src/arrow/type.h
index afd66e7a0f264..6b944fc249684 100644
--- a/cpp/src/arrow/type.h
+++ b/cpp/src/arrow/type.h
@@ -895,7 +895,7 @@ class ARROW_EXPORT DecimalType : public FixedSizeBinaryType {
 
 /// \brief Template type class for decimal data
 template<uint32_t width>
-class BaseDecimalType : public DecimalType {
+class ARROW_EXPORT BaseDecimalType : public DecimalType {
  public:
   static constexpr const char* type_name() { return DecimalMeta<width>::name; }
 
diff --git a/cpp/src/arrow/util/basic_decimal.h b/cpp/src/arrow/util/basic_decimal.h
index 0b48f89f1b9db..6f08ec0b65dc3 100644
--- a/cpp/src/arrow/util/basic_decimal.h
+++ b/cpp/src/arrow/util/basic_decimal.h
@@ -338,7 +338,7 @@ ARROW_EXPORT BasicDecimal256 operator/(const BasicDecimal256& left,
 
 
 template<uint32_t width>
-class BasicDecimalAnyWidth {
+class ARROW_EXPORT BasicDecimalAnyWidth {
  public:
   using ValueType = typename IntTypes<width>::signed_type;
   /// \brief Empty constructor creates a BasicDecimal256 with a value of 0.