diff --git a/cmake/QtFlagHandlingHelpers.cmake b/cmake/QtFlagHandlingHelpers.cmake
index 9af05d5907d..4e9d71d6cf9 100644
--- a/cmake/QtFlagHandlingHelpers.cmake
+++ b/cmake/QtFlagHandlingHelpers.cmake
@@ -260,6 +260,15 @@ function(qt_enable_utf8_sources target)
     endif()
 endfunction()
 
+function(qt_internal_enable_unicode_defines)
+    if(WIN32)
+        set(no_unicode_condition
+            "$<NOT:$<BOOL:$<TARGET_PROPERTY:QT_NO_UNICODE_DEFINES>>>")
+        target_compile_definitions(Platform
+            INTERFACE "$<${no_unicode_condition}:UNICODE;_UNICODE>")
+    endif()
+endfunction()
+
 # Saves the list of known optimization flags for the current compiler in out_var.
 #
 # Mostly used for removing them before adding new ones.
diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index b1895ddb3ec..7e934f6ac82 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -147,14 +147,11 @@ elseif(UIKIT)
     target_compile_definitions(PlatformCommonInternal INTERFACE GLES_SILENCE_DEPRECATION)
 endif()
 
-if(WIN32)
-    target_compile_definitions(PlatformCommonInternal INTERFACE "UNICODE;_UNICODE")
-    if(MSVC)
-        target_compile_definitions(PlatformCommonInternal INTERFACE
-            "_CRT_SECURE_NO_WARNINGS"
-            "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>:_WINDLL>"
-        )
-    endif()
+if(MSVC)
+    target_compile_definitions(PlatformCommonInternal INTERFACE
+        "_CRT_SECURE_NO_WARNINGS"
+        "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>:_WINDLL>"
+    )
 endif()
 
 if(UIKIT)
diff --git a/cmake/QtPublicTargetsHelpers.cmake b/cmake/QtPublicTargetsHelpers.cmake
index 0a414f379ac..39ba11b2609 100644
--- a/cmake/QtPublicTargetsHelpers.cmake
+++ b/cmake/QtPublicTargetsHelpers.cmake
@@ -30,4 +30,6 @@ function(qt_internal_setup_public_platform_target)
     # By default enable utf8 sources for both Qt and Qt consumers. Can be opted out.
     qt_enable_utf8_sources(Platform)
 
+    # By default enable unicode on WIN32 platforms for both Qt and Qt consumers. Can be opted out.
+    qt_internal_enable_unicode_defines(Platform)
 endfunction()
diff --git a/src/corelib/Qt6CoreMacros.cmake b/src/corelib/Qt6CoreMacros.cmake
index c5d8c928da7..7c43efff554 100644
--- a/src/corelib/Qt6CoreMacros.cmake
+++ b/src/corelib/Qt6CoreMacros.cmake
@@ -1785,3 +1785,14 @@ properties of both types."
         )
     endforeach()
 endfunction()
+
+# Disables the default unicode definitions for the target
+function(qt6_disable_unicode_defines target)
+    set_target_properties(${target} PROPERTIES QT_NO_UNICODE_DEFINES TRUE)
+endfunction()
+
+if(NOT QT_NO_CREATE_VERSIONLESS_FUNCTIONS)
+    function(qt_disable_unicode_defines)
+        qt6_disable_unicode_defines(${ARGV})
+    endfunction()
+endif()