diff --git a/.changeset/sharp-dancers-hear.md b/.changeset/sharp-dancers-hear.md
new file mode 100644
index 00000000000..59ab0005789
--- /dev/null
+++ b/.changeset/sharp-dancers-hear.md
@@ -0,0 +1,5 @@
+---
+'@clerk/localizations': patch
+---
+
+add placeholder text for username field in en-GB
diff --git a/package.json b/package.json
index 900b864776b..7b552753d61 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "build:declarations": "FORCE_COLOR=1 turbo build:declarations --concurrency=${TURBO_CONCURRENCY:-80%} --filter=@clerk/nextjs --filter=@clerk/react --filter=@clerk/shared",
     "bundlewatch": "turbo run bundlewatch",
     "changeset": "changeset",
+    "changeset:add-en-gb": "node scripts/add-en-gb-changeset.mjs",
     "changeset:empty": "pnpm changeset --empty",
     "clean": "turbo run clean",
     "dev": "TURBO_UI=0 FORCE_COLOR=1 turbo dev --filter=@clerk/* --filter=!@clerk/expo --filter=!@clerk/tanstack-react-start --filter=!@clerk/chrome-extension",
diff --git a/packages/localizations/src/en-GB.ts b/packages/localizations/src/en-GB.ts
index 19b536cdf98..93f7b6c0768 100644
--- a/packages/localizations/src/en-GB.ts
+++ b/packages/localizations/src/en-GB.ts
@@ -223,7 +223,7 @@ export const enGB: LocalizationResource = {
   formFieldInputPlaceholder__organizationSlug: 'my-org',
   formFieldInputPlaceholder__password: 'Enter your password',
   formFieldInputPlaceholder__phoneNumber: 'Enter your phone number',
-  formFieldInputPlaceholder__username: undefined,
+  formFieldInputPlaceholder__username: 'Enter your username',
   formFieldInput__emailAddress_format: undefined,
   formFieldLabel__apiKey: 'API key',
   formFieldLabel__apiKeyDescription: 'Description',
diff --git a/scripts/add-en-gb-changeset.mjs b/scripts/add-en-gb-changeset.mjs
new file mode 100644
index 00000000000..ffc2ae8acbf
--- /dev/null
+++ b/scripts/add-en-gb-changeset.mjs
@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+/**
+ * Adds a changeset for the en-GB username placeholder fix.
+ * Equivalent to: pnpm changeset add → select @clerk/localizations → patch → summary.
+ * Run with: pnpm changeset:add-en-gb
+ */
+import { writeFileSync } from 'fs';
+import { join } from 'path';
+
+const summary = 'Add placeholder text "Enter your username" for username field in en-GB locale';
+
+const content = `---
+'@clerk/localizations': patch
+---
+
+${summary}
+`;
+
+const filename = 'fix-username-placeholder-en-gb.md';
+const filepath = join(process.cwd(), '.changeset', filename);
+writeFileSync(filepath, content, 'utf-8');
+console.log(`🦋  Changeset added: .changeset/${filename}`);
+console.log(`   Run "pnpm changeset add" in your terminal to add more, or commit this file.`);