diff --git a/src/i18n/lib.js b/src/i18n/lib.js
index 7b0e5548f..ffa0af8bb 100644
--- a/src/i18n/lib.js
+++ b/src/i18n/lib.js
@@ -39,6 +39,8 @@ const supportedLocales = [
   'ar', // Arabic
   // NOTE: 'en' is not included in this list intentionally, since it's the fallback.
   'es-419', // Spanish, Latin American
+  'fa', // Farsi
+  'fa-ir', // Farsi, Iran
   'fr', // French
   'zh-cn', // Chinese, Simplified
   'ca', // Catalan
@@ -55,6 +57,7 @@ const rtlLocales = [
   'ar', // Arabic
   'he', // Hebrew
   'fa', // Farsi (not currently supported)
+  'fa-ir', // Farsi Iran
   'ur', // Urdu (not currently supported)
 ];
 
diff --git a/src/i18n/lib.test.js b/src/i18n/lib.test.js
index f4aa0b825..1df5a3831 100644
--- a/src/i18n/lib.test.js
+++ b/src/i18n/lib.test.js
@@ -188,6 +188,7 @@ describe('lib', () => {
       expect(isRtl('ar')).toBe(true);
       expect(isRtl('he')).toBe(true);
       expect(isRtl('fa')).toBe(true);
+      expect(isRtl('fa-ir')).toBe(true);
       expect(isRtl('ur')).toBe(true);
     });