diff --git a/change/react-native-windows-b37f9813-c7a4-49cd-83a8-808a00b86649.json b/change/react-native-windows-b37f9813-c7a4-49cd-83a8-808a00b86649.json
new file mode 100644
index 00000000000..034d1e38069
--- /dev/null
+++ b/change/react-native-windows-b37f9813-c7a4-49cd-83a8-808a00b86649.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Fix Number.h not copied from react-native core",
+  "packageName": "react-native-windows",
+  "email": "hampus.sjoberg@protonmail.com",
+  "dependentChangeType": "patch"
+}
diff --git a/vnext/Scripts/Tfs/Layout-MSRN-Headers.ps1 b/vnext/Scripts/Tfs/Layout-MSRN-Headers.ps1
index 348400ff0a7..7f1c54d2583 100644
--- a/vnext/Scripts/Tfs/Layout-MSRN-Headers.ps1
+++ b/vnext/Scripts/Tfs/Layout-MSRN-Headers.ps1
@@ -108,6 +108,7 @@ Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\Convert.h -De
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\Error.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\EventEmitter.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\Function.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
+Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\Number.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\LongLivedObject.cpp -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\LongLivedObject.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\
 Copy-Item -Force -Path $ReactNativeRoot\ReactCommon\react\bridging\Object.h -Destination $MSRNCxxTargetRoot\ReactCommon\react\bridging\