diff --git a/packages/components/CHANGELOG.md b/packages/components/CHANGELOG.md
index 9c36c6600ac701..475bf272cc1bb8 100644
--- a/packages/components/CHANGELOG.md
+++ b/packages/components/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 -   `Tabs`: fix indicator animation ([#66198](https://github.com/WordPress/gutenberg/pull/66198)).
 -   `ColorPalette`: prevent overflow of custom color button background ([#66152](https://github.com/WordPress/gutenberg/pull/66152)).
+-   `RadioGroup`: Fix arrow key navigation in RTL ([#66202](https://github.com/WordPress/gutenberg/pull/66202)).
 -   `Tabs` and `TabPanel`: Fix arrow key navigation in RTL ([#66201](https://github.com/WordPress/gutenberg/pull/66201)).
 
 ### Enhancements
diff --git a/packages/components/src/radio-group/index.tsx b/packages/components/src/radio-group/index.tsx
index ac66c79e904e4b..e59775c00a8023 100644
--- a/packages/components/src/radio-group/index.tsx
+++ b/packages/components/src/radio-group/index.tsx
@@ -7,6 +7,7 @@ import * as Ariakit from '@ariakit/react';
  * WordPress dependencies
  */
 import { useMemo, forwardRef } from '@wordpress/element';
+import { isRTL } from '@wordpress/i18n';
 
 /**
  * Internal dependencies
@@ -34,6 +35,7 @@ function UnforwardedRadioGroup(
 		setValue: ( newValue ) => {
 			onChange?.( newValue ?? undefined );
 		},
+		rtl: isRTL(),
 	} );
 
 	const contextValue = useMemo(