diff --git a/change/react-native-windows-f9b254e2-6654-4ab4-97f5-c515d3773b1e.json b/change/react-native-windows-f9b254e2-6654-4ab4-97f5-c515d3773b1e.json
new file mode 100644
index 00000000000..87cbdf6ccf1
--- /dev/null
+++ b/change/react-native-windows-f9b254e2-6654-4ab4-97f5-c515d3773b1e.json
@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "Expose ReactNativeWindow from ReactNativeWin32App",
+  "packageName": "react-native-windows",
+  "email": "30809111+acoates-ms@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/vnext/Microsoft.ReactNative/ReactNativeAppBuilder.idl b/vnext/Microsoft.ReactNative/ReactNativeAppBuilder.idl
index 04432d2f4be..77edc230226 100644
--- a/vnext/Microsoft.ReactNative/ReactNativeAppBuilder.idl
+++ b/vnext/Microsoft.ReactNative/ReactNativeAppBuilder.idl
@@ -3,6 +3,7 @@ import "ReactNativeHost.idl";
 import "ReactNativeIsland.idl";
 import "ReactInstanceSettings.idl";
 import "IReactPackageProvider.idl";
+import "ReactNativeWindow.idl";
 
 #include "DocString.h"
 
@@ -14,6 +15,8 @@ namespace Microsoft.ReactNative {
         // Properties
         Microsoft.UI.Windowing.AppWindow AppWindow {get;};
 
+        ReactNativeWindow ReactNativeWindow {get;};
+
         ReactNativeHost ReactNativeHost {get;};
 
         ReactViewOptions ReactViewOptions {get;};