diff --git a/src/ui/services/repo.ts b/src/ui/services/repo.ts
index 710942ada..7e72c30a2 100644
--- a/src/ui/services/repo.ts
+++ b/src/ui/services/repo.ts
@@ -79,6 +79,29 @@ const compareLatestPush = (a: RepoView, b: RepoView, direction: 'asc' | 'desc'):
   return compareRepoName(a, b, 'asc');
 };
 
+const createdAtMs = (repo: RepoView): number | undefined => {
+  if (!repo.dateCreated) return undefined;
+  const ms = Date.parse(repo.dateCreated);
+  return Number.isNaN(ms) ? undefined : ms;
+};
+
+const compareCreated = (a: RepoView, b: RepoView, direction: 'asc' | 'desc'): number => {
+  if (direction === 'desc') {
+    const aMs = createdAtMs(a) ?? Number.NEGATIVE_INFINITY;
+    const bMs = createdAtMs(b) ?? Number.NEGATIVE_INFINITY;
+    if (bMs !== aMs) {
+      return bMs - aMs;
+    }
+  } else {
+    const aMs = createdAtMs(a) ?? Number.POSITIVE_INFINITY;
+    const bMs = createdAtMs(b) ?? Number.POSITIVE_INFINITY;
+    if (aMs !== bMs) {
+      return aMs - bMs;
+    }
+  }
+  return compareRepoName(a, b, 'asc');
+};
+
 export const sortRepoViews = (
   repos: RepoView[],
   sort: RepoSortField,
@@ -101,6 +124,12 @@ export const sortRepoViews = (
     case 'lastPushed-asc':
       next.sort((a, b) => compareLatestPush(a, b, 'asc'));
       break;
+    case 'created-desc':
+      next.sort((a, b) => compareCreated(a, b, 'desc'));
+      break;
+    case 'created-asc':
+      next.sort((a, b) => compareCreated(a, b, 'asc'));
+      break;
     case 'name-desc':
       next.sort((a, b) => compareRepoName(a, b, 'desc'));
       break;
diff --git a/src/ui/views/RepoList/Components/RepositoriesSortMenu.tsx b/src/ui/views/RepoList/Components/RepositoriesSortMenu.tsx
index cca303787..52c52b305 100644
--- a/src/ui/views/RepoList/Components/RepositoriesSortMenu.tsx
+++ b/src/ui/views/RepoList/Components/RepositoriesSortMenu.tsx
@@ -17,6 +17,7 @@
 import React from 'react';
 import { ActionMenu, ActionList } from '@primer/react';
 import {
+  CalendarIcon,
   ClockIcon,
   PersonIcon,
   PulseIcon,
@@ -123,6 +124,15 @@ const RepositoriesSortMenu = ({ sort, onSortChange }: RepositoriesSortMenuProps)
               </ActionList.LeadingVisual>
               Last pushed
             </ActionList.Item>
+            <ActionList.Item
+              selected={axisMatchesSort('created', sort)}
+              onSelect={() => onSortChange(repoSortSetAxis(sort, 'created'))}
+            >
+              <ActionList.LeadingVisual>
+                <CalendarIcon />
+              </ActionList.LeadingVisual>
+              Created
+            </ActionList.Item>
           </ActionList.Group>
           {sort !== 'relevance' && sort !== 'activity' && sort !== 'latestPendingReview' ? (
             <>
diff --git a/src/ui/views/RepoList/Components/repoSortField.ts b/src/ui/views/RepoList/Components/repoSortField.ts
index d38f8ab6d..dcd7f1d2e 100644
--- a/src/ui/views/RepoList/Components/repoSortField.ts
+++ b/src/ui/views/RepoList/Components/repoSortField.ts
@@ -18,12 +18,15 @@ export type RepoSortField =
   | 'relevance'
   | 'lastPushed-asc'
   | 'lastPushed-desc'
+  | 'created-asc'
+  | 'created-desc'
   | 'name-asc'
   | 'name-desc'
   | 'activity'
   | 'latestPendingReview';
 
-export type RepoSortAxis = 'relevance' | 'lastPushed' | 'name' | 'activity' | 'latestPendingReview';
+export type RepoSortAxis =
+  'relevance' | 'lastPushed' | 'created' | 'name' | 'activity' | 'latestPendingReview';
 
 export const DEFAULT_REPO_SORT: RepoSortField = 'relevance';
 
@@ -31,6 +34,8 @@ export const REPO_SORT_VALUES = [
   'relevance',
   'lastPushed-asc',
   'lastPushed-desc',
+  'created-asc',
+  'created-desc',
   'name-asc',
   'name-desc',
   'activity',
@@ -40,6 +45,7 @@ export const REPO_SORT_VALUES = [
 export const REPO_SORT_AXIS_LABEL = {
   relevance: 'Relevance',
   lastPushed: 'Last pushed',
+  created: 'Created',
   name: 'Name',
   activity: 'Activity',
   latestPendingReview: 'Pending',
@@ -52,7 +58,9 @@ export const repoSortAxis = (sort: RepoSortField): RepoSortAxis => {
   if (sort === 'relevance') return 'relevance';
   if (sort === 'activity') return 'activity';
   if (sort === 'latestPendingReview') return 'latestPendingReview';
-  return sort.startsWith('lastPushed') ? 'lastPushed' : 'name';
+  if (sort.startsWith('lastPushed')) return 'lastPushed';
+  if (sort.startsWith('created')) return 'created';
+  return 'name';
 };
 
 export const repoSortDirection = (sort: RepoSortField): 'asc' | 'desc' => {
@@ -64,7 +72,9 @@ export const repoSortCombine = (axis: RepoSortAxis, dir: 'asc' | 'desc'): RepoSo
   if (axis === 'relevance') return 'relevance';
   if (axis === 'activity') return 'activity';
   if (axis === 'latestPendingReview') return 'latestPendingReview';
-  return axis === 'lastPushed' ? `lastPushed-${dir}` : `name-${dir}`;
+  if (axis === 'lastPushed') return `lastPushed-${dir}`;
+  if (axis === 'created') return `created-${dir}`;
+  return `name-${dir}`;
 };
 
 export const repoSortSetAxis = (prev: RepoSortField, axis: RepoSortAxis): RepoSortField => {
@@ -72,7 +82,7 @@ export const repoSortSetAxis = (prev: RepoSortField, axis: RepoSortAxis): RepoSo
   if (axis === 'activity') return 'activity';
   if (axis === 'latestPendingReview') return 'latestPendingReview';
   if (prev === 'relevance' || prev === 'activity' || prev === 'latestPendingReview') {
-    return repoSortCombine(axis, axis === 'lastPushed' ? 'desc' : 'asc');
+    return repoSortCombine(axis, axis === 'lastPushed' || axis === 'created' ? 'desc' : 'asc');
   }
   return repoSortCombine(axis, repoSortDirection(prev));
 };
diff --git a/test/ui/repo.test.ts b/test/ui/repo.test.ts
index 084a07ae6..d8450bb25 100644
--- a/test/ui/repo.test.ts
+++ b/test/ui/repo.test.ts
@@ -22,7 +22,9 @@ import {
   getRepo,
   addRepo,
   deleteRepo,
+  sortRepoViews,
 } from '../../src/ui/services/repo';
+import type { RepoView } from '../../src/ui/types';
 
 const { axiosMock } = vi.hoisted(() => {
   const axiosFn = vi.fn() as any;
@@ -383,3 +385,67 @@ describe('repo service additional functions', () => {
     });
   });
 });
+
+describe('sortRepoViews created axis', () => {
+  const makeRepo = (name: string, dateCreated?: string): RepoView =>
+    ({
+      name,
+      project: 'org',
+      url: `https://example.com/org/${name}.git`,
+      users: { canPush: [], canAuthorise: [] },
+      proxyURL: 'https://proxy.example.com',
+      ...(dateCreated ? { dateCreated } : {}),
+    }) as RepoView;
+
+  it('sorts by created desc: newest created first, repos without a date last', () => {
+    const repos = [
+      makeRepo('no-date'),
+      makeRepo('older', '2024-01-01T00:00:00.000Z'),
+      makeRepo('newer', '2025-01-01T00:00:00.000Z'),
+    ];
+
+    const result = sortRepoViews(repos, 'created-desc');
+
+    expect(result.map((r) => r.name)).toEqual(['newer', 'older', 'no-date']);
+  });
+
+  it('sorts by created asc: oldest created first, repos without a date last', () => {
+    const repos = [
+      makeRepo('no-date'),
+      makeRepo('newer', '2025-01-01T00:00:00.000Z'),
+      makeRepo('older', '2024-01-01T00:00:00.000Z'),
+    ];
+
+    const result = sortRepoViews(repos, 'created-asc');
+
+    expect(result.map((r) => r.name)).toEqual(['older', 'newer', 'no-date']);
+  });
+
+  it('falls back to name ascending when created dates are equal', () => {
+    const repos = [
+      makeRepo('zebra', '2025-01-01T00:00:00.000Z'),
+      makeRepo('alpha', '2025-01-01T00:00:00.000Z'),
+    ];
+
+    expect(sortRepoViews(repos, 'created-desc').map((r) => r.name)).toEqual(['alpha', 'zebra']);
+    expect(sortRepoViews(repos, 'created-asc').map((r) => r.name)).toEqual(['alpha', 'zebra']);
+  });
+
+  it('treats an unparseable created date as missing and sorts it last', () => {
+    const repos = [makeRepo('broken', 'not-a-date'), makeRepo('valid', '2024-01-01T00:00:00.000Z')];
+
+    expect(sortRepoViews(repos, 'created-desc').map((r) => r.name)).toEqual(['valid', 'broken']);
+    expect(sortRepoViews(repos, 'created-asc').map((r) => r.name)).toEqual(['valid', 'broken']);
+  });
+
+  it('does not mutate the input array', () => {
+    const repos = [
+      makeRepo('older', '2024-01-01T00:00:00.000Z'),
+      makeRepo('newer', '2025-01-01T00:00:00.000Z'),
+    ];
+
+    sortRepoViews(repos, 'created-desc');
+
+    expect(repos.map((r) => r.name)).toEqual(['older', 'newer']);
+  });
+});