diff --git a/docs/app/components/content/SupportedLanguages.vue b/docs/app/components/content/SupportedLanguages.vue
index 2d3bd61c5d..c5261bf4b5 100644
--- a/docs/app/components/content/SupportedLanguages.vue
+++ b/docs/app/components/content/SupportedLanguages.vue
@@ -16,7 +16,7 @@ function getEmojiFlag(locale: string): string {
     cs: 'cz', // Czech -> Czech Republic (note: modern country code is actually 'cz')
     da: 'dk', // Danish -> Denmark
     el: 'gr', // Greek -> Greece
-    en: 'gb', // English -> Great Britain
+    en: 'us', // English -> United States (default)
     et: 'ee', // Estonian -> Estonia
     gl: 'es', // Galician -> Spain
     he: 'il', // Hebrew -> Israel
@@ -40,8 +40,20 @@ function getEmojiFlag(locale: string): string {
     vi: 'vn' // Vietnamese -> Vietnam
   }
 
+  // If locale has a country code (e.g., en-GB), extract and use it
+  if (locale.includes('-')) {
+    const countryCode = locale.split('-')[1]?.toLowerCase()
+    if (countryCode) {
+      return countryCode.toUpperCase()
+        .split('')
+        .map(char => String.fromCodePoint(0x1F1A5 + char.charCodeAt(0)))
+        .join('')
+    }
+  }
+
+  // Otherwise, use the language-to-country mapping
   const baseLanguage = locale.split('-')[0]?.toLowerCase() || locale
-  const countryCode = languageToCountry[baseLanguage] || locale.replace(/^.*-/, '').slice(0, 2)
+  const countryCode = languageToCountry[baseLanguage] || locale.slice(0, 2)
 
   return countryCode.toUpperCase()
     .split('')
diff --git a/src/runtime/components/locale/LocaleSelect.vue b/src/runtime/components/locale/LocaleSelect.vue
index 550360c368..1cadb3af02 100644
--- a/src/runtime/components/locale/LocaleSelect.vue
+++ b/src/runtime/components/locale/LocaleSelect.vue
@@ -33,7 +33,7 @@ function getEmojiFlag(locale: string): string {
     cs: 'cz', // Czech -> Czech Republic (note: modern country code is actually 'cz')
     da: 'dk', // Danish -> Denmark
     el: 'gr', // Greek -> Greece
-    en: 'gb', // English -> Great Britain
+    en: 'us', // English -> United States (default)
     et: 'ee', // Estonian -> Estonia
     gl: 'es', // Galician -> Spain
     he: 'il', // Hebrew -> Israel
@@ -56,8 +56,20 @@ function getEmojiFlag(locale: string): string {
     vi: 'vn' // Vietnamese -> Vietnam
   }
 
+  // If locale has a country code (e.g., en-GB), extract and use it
+  if (locale.includes('-')) {
+    const countryCode = locale.split('-')[1]?.toLowerCase()
+    if (countryCode) {
+      return countryCode.toUpperCase()
+        .split('')
+        .map(char => String.fromCodePoint(0x1F1A5 + char.charCodeAt(0)))
+        .join('')
+    }
+  }
+
+  // Otherwise, use the language-to-country mapping
   const baseLanguage = locale.split('-')[0]?.toLowerCase() || locale
-  const countryCode = languageToCountry[baseLanguage] || locale.replace(/^.*-/, '').slice(0, 2)
+  const countryCode = languageToCountry[baseLanguage] || locale.slice(0, 2)
 
   return countryCode.toUpperCase()
     .split('')
diff --git a/src/runtime/locale/en_gb.ts b/src/runtime/locale/en_gb.ts
new file mode 100644
index 0000000000..4298c0a9e5
--- /dev/null
+++ b/src/runtime/locale/en_gb.ts
@@ -0,0 +1,9 @@
+import type { Messages } from '../types'
+import { defineLocale } from '../composables/defineLocale'
+import en from './en'
+
+export default defineLocale<Messages>({
+  name: 'English (United Kingdom)',
+  code: 'en-GB',
+  messages: en.messages
+})
diff --git a/src/runtime/locale/index.ts b/src/runtime/locale/index.ts
index 94b80fccf2..e60a19ac6d 100644
--- a/src/runtime/locale/index.ts
+++ b/src/runtime/locale/index.ts
@@ -10,6 +10,7 @@ export { default as de } from './de'
 export { default as de_ch } from './de_ch'
 export { default as el } from './el'
 export { default as en } from './en'
+export { default as en_gb } from './en_gb'
 export { default as es } from './es'
 export { default as et } from './et'
 export { default as fa_ir } from './fa_ir'