diff --git a/src/i18n/countries.js b/src/i18n/countries.js
index 8acad6450..f1a487165 100644
--- a/src/i18n/countries.js
+++ b/src/i18n/countries.js
@@ -14,6 +14,7 @@ import plLocale from 'i18n-iso-countries/langs/pl.json';
 import ptLocale from 'i18n-iso-countries/langs/pt.json';
 import ruLocale from 'i18n-iso-countries/langs/ru.json';
 import ukLocale from 'i18n-iso-countries/langs/uk.json';
+import viLocale from 'i18n-iso-countries/langs/vi.json';
 
 import { getPrimaryLanguageSubtag } from './lib';
 
@@ -39,6 +40,7 @@ COUNTRIES.registerLocale(ptLocale);
 COUNTRIES.registerLocale(ruLocale);
 // COUNTRIES.registerLocale(thLocale); // Doesn't exist in lib.
 COUNTRIES.registerLocale(ukLocale);
+COUNTRIES.registerLocale(viLocale);
 
 /**
  * Provides a lookup table of country IDs to country names for the current locale.
diff --git a/src/i18n/lib.js b/src/i18n/lib.js
index 867d0509f..283235ec8 100644
--- a/src/i18n/lib.js
+++ b/src/i18n/lib.js
@@ -17,6 +17,7 @@ import '@formatjs/intl-pluralrules/locale-data/pt';
 import '@formatjs/intl-pluralrules/locale-data/ru';
 import '@formatjs/intl-pluralrules/locale-data/th';
 import '@formatjs/intl-pluralrules/locale-data/uk';
+import '@formatjs/intl-pluralrules/locale-data/vi';
 
 import '@formatjs/intl-relativetimeformat/polyfill';
 import '@formatjs/intl-relativetimeformat/locale-data/ar';
@@ -33,6 +34,7 @@ import '@formatjs/intl-relativetimeformat/locale-data/pt';
 import '@formatjs/intl-relativetimeformat/locale-data/ru';
 import '@formatjs/intl-relativetimeformat/locale-data/th';
 import '@formatjs/intl-relativetimeformat/locale-data/uk';
+import '@formatjs/intl-relativetimeformat/locale-data/vi';
 
 const cookies = new Cookies();
 const supportedLocales = [
@@ -51,7 +53,8 @@ const supportedLocales = [
   'pt-br', // Portuguese (Brazil)
   'ru', // Russian
   'th', // Thai
-  'uk', // Ukrainian
+  'uk', // Ukrainian,
+  'vi', // Vietnamese
 ];
 const rtlLocales = [
   'ar', // Arabic
@@ -220,6 +223,7 @@ const messagesShape = {
   ru: PropTypes.objectOf(PropTypes.string), // Russian
   th: PropTypes.objectOf(PropTypes.string), // Thai
   uk: PropTypes.objectOf(PropTypes.string), // Ukrainian
+  vi: PropTypes.objectOf(PropTypes.string), // Vietnamese
 };
 
 const optionsShape = {
diff --git a/src/i18n/lib.test.js b/src/i18n/lib.test.js
index b9285226b..75b82ec9f 100644
--- a/src/i18n/lib.test.js
+++ b/src/i18n/lib.test.js
@@ -80,7 +80,7 @@ describe('lib', () => {
         messages: {},
       });
 
-      expect(console.warn).toHaveBeenCalledTimes(15);
+      expect(console.warn).toHaveBeenCalledTimes(16);
       expect(console.warn).toHaveBeenCalledWith('Missing locale: ar');
       expect(console.warn).toHaveBeenCalledWith('Missing locale: es-419');
       expect(console.warn).toHaveBeenCalledWith('Missing locale: fr');
@@ -94,6 +94,7 @@ describe('lib', () => {
       expect(console.warn).toHaveBeenCalledWith('Missing locale: ru');
       expect(console.warn).toHaveBeenCalledWith('Missing locale: th');
       expect(console.warn).toHaveBeenCalledWith('Missing locale: uk');
+      expect(console.warn).toHaveBeenCalledWith('Missing locale: vi');
     });
   });
 
@@ -198,6 +199,7 @@ describe('lib', () => {
       expect(isRtl('es-419')).toBe(false);
       expect(isRtl('de')).toBe(false);
       expect(isRtl('ru')).toBe(false);
+      expect(isRtl('vi')).toBe(false);
     });
   });