diff --git a/e2e-tests/test-applications/tanstack-start-test-app/.gitignore b/e2e-tests/test-applications/tanstack-start-test-app/.gitignore
new file mode 100644
index 000000000..b2bb8c70b
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/.gitignore
@@ -0,0 +1,6 @@
+node_modules
+.DS_Store
+.env
+.output
+.nitro
+.tanstack
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/package.json b/e2e-tests/test-applications/tanstack-start-test-app/package.json
new file mode 100644
index 000000000..562163ff9
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "tanstack-start-test-app",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite dev",
+    "build": "vite build",
+    "start": "node .output/server/index.mjs"
+  },
+  "dependencies": {
+    "@tanstack/react-router": "^1.132.0",
+    "@tanstack/react-start": "^1.132.0",
+    "@tanstack/router-plugin": "^1.132.0",
+    "nitro": "latest",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0",
+    "vite-tsconfig-paths": "^6.0.2"
+  },
+  "devDependencies": {
+    "@types/react": "^19.2.0",
+    "@types/react-dom": "^19.2.0",
+    "@vitejs/plugin-react": "^5.0.4",
+    "typescript": "^5.7.2",
+    "vite": "^7.1.7"
+  }
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/src/routeTree.gen.ts b/e2e-tests/test-applications/tanstack-start-test-app/src/routeTree.gen.ts
new file mode 100644
index 000000000..dceedffdc
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/src/routeTree.gen.ts
@@ -0,0 +1,68 @@
+/* eslint-disable */
+
+// @ts-nocheck
+
+// noinspection JSUnusedGlobalSymbols
+
+// This file was automatically generated by TanStack Router.
+// You should NOT make any changes in this file as it will be overwritten.
+// Additionally, you should also exclude this file from your linter and/or formatter to prevent it from being checked or modified.
+
+import { Route as rootRouteImport } from './routes/__root'
+import { Route as IndexRouteImport } from './routes/index'
+
+const IndexRoute = IndexRouteImport.update({
+  id: '/',
+  path: '/',
+  getParentRoute: () => rootRouteImport,
+} as any)
+
+export interface FileRoutesByFullPath {
+  '/': typeof IndexRoute
+}
+export interface FileRoutesByTo {
+  '/': typeof IndexRoute
+}
+export interface FileRoutesById {
+  __root__: typeof rootRouteImport
+  '/': typeof IndexRoute
+}
+export interface FileRouteTypes {
+  fileRoutesByFullPath: FileRoutesByFullPath
+  fullPaths: '/'
+  fileRoutesByTo: FileRoutesByTo
+  to: '/'
+  id: '__root__' | '/'
+  fileRoutesById: FileRoutesById
+}
+export interface RootRouteChildren {
+  IndexRoute: typeof IndexRoute
+}
+
+declare module '@tanstack/react-router' {
+  interface FileRoutesByPath {
+    '/': {
+      id: '/'
+      path: '/'
+      fullPath: '/'
+      preLoaderRoute: typeof IndexRouteImport
+      parentRoute: typeof rootRouteImport
+    }
+  }
+}
+
+const rootRouteChildren: RootRouteChildren = {
+  IndexRoute: IndexRoute,
+}
+export const routeTree = rootRouteImport
+  ._addFileChildren(rootRouteChildren)
+  ._addFileTypes<FileRouteTypes>()
+
+import type { getRouter } from './router.tsx'
+import type { createStart } from '@tanstack/react-start'
+declare module '@tanstack/react-start' {
+  interface Register {
+    ssr: true
+    router: Awaited<ReturnType<typeof getRouter>>
+  }
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/src/router.tsx b/e2e-tests/test-applications/tanstack-start-test-app/src/router.tsx
new file mode 100644
index 000000000..29472c661
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/src/router.tsx
@@ -0,0 +1,16 @@
+import { createRouter } from '@tanstack/react-router';
+import { routeTree } from '@/routeTree.gen';
+
+export function getRouter() {
+  return createRouter({
+    routeTree,
+    defaultPreload: 'intent',
+    scrollRestoration: true,
+  });
+}
+
+declare module '@tanstack/react-router' {
+  interface Register {
+    router: ReturnType<typeof getRouter>;
+  }
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/src/routes/__root.tsx b/e2e-tests/test-applications/tanstack-start-test-app/src/routes/__root.tsx
new file mode 100644
index 000000000..cf42795d1
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/src/routes/__root.tsx
@@ -0,0 +1,30 @@
+import {
+  HeadContent,
+  Outlet,
+  Scripts,
+  createRootRoute,
+} from '@tanstack/react-router';
+
+export const Route = createRootRoute({
+  head: () => ({
+    meta: [
+      { charSet: 'utf-8' },
+      { name: 'viewport', content: 'width=device-width, initial-scale=1' },
+    ],
+  }),
+  component: RootLayout,
+});
+
+function RootLayout() {
+  return (
+    <html>
+      <head>
+        <HeadContent />
+      </head>
+      <body>
+        <Outlet />
+        <Scripts />
+      </body>
+    </html>
+  );
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/src/routes/index.tsx b/e2e-tests/test-applications/tanstack-start-test-app/src/routes/index.tsx
new file mode 100644
index 000000000..8dab59a6f
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/src/routes/index.tsx
@@ -0,0 +1,9 @@
+import { createFileRoute } from '@tanstack/react-router';
+
+export const Route = createFileRoute('/')({
+  component: Home,
+});
+
+function Home() {
+  return <h1>Home</h1>;
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/tsconfig.json b/e2e-tests/test-applications/tanstack-start-test-app/tsconfig.json
new file mode 100644
index 000000000..7d15a8774
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/tsconfig.json
@@ -0,0 +1,20 @@
+{
+  "include": ["**/*.ts", "**/*.tsx"],
+  "compilerOptions": {
+    "target": "ES2022",
+    "jsx": "react-jsx",
+    "module": "ESNext",
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "types": ["vite/client"],
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": false,
+    "noEmit": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  }
+}
diff --git a/e2e-tests/test-applications/tanstack-start-test-app/vite.config.ts b/e2e-tests/test-applications/tanstack-start-test-app/vite.config.ts
new file mode 100644
index 000000000..973ce87ca
--- /dev/null
+++ b/e2e-tests/test-applications/tanstack-start-test-app/vite.config.ts
@@ -0,0 +1,14 @@
+import { tanstackStart } from '@tanstack/react-start/plugin/vite';
+import { defineConfig } from 'vite';
+import tsConfigPaths from 'vite-tsconfig-paths';
+import viteReact from '@vitejs/plugin-react';
+import { nitro } from 'nitro/vite';
+
+export default defineConfig({
+  plugins: [
+    tsConfigPaths({ projects: ['./tsconfig.json'] }),
+    tanstackStart({ srcDirectory: 'src' }),
+    viteReact(),
+    nitro(),
+  ],
+});
diff --git a/e2e-tests/tests/help-message.test.ts b/e2e-tests/tests/help-message.test.ts
index 9fc84bffc..755277ebe 100644
--- a/e2e-tests/tests/help-message.test.ts
+++ b/e2e-tests/tests/help-message.test.ts
@@ -31,7 +31,7 @@ describe('--help command', () => {
                                   env: SENTRY_WIZARD_INTEGRATION
            [choices: "reactNative", "flutter", "ios", "android", "cordova", "angular",
                    "cloudflare", "electron", "nextjs", "nuxt", "remix", "reactRouter",
-                                                            "sveltekit", "sourcemaps"]
+                                           "sveltekit", "tanstackStart", "sourcemaps"]
         -p, --platform            Choose platform(s)
                                   env: SENTRY_WIZARD_PLATFORM
                                                    [array] [choices: "ios", "android"]
diff --git a/e2e-tests/tests/tanstack-start.test.ts b/e2e-tests/tests/tanstack-start.test.ts
new file mode 100644
index 000000000..15b24f6cb
--- /dev/null
+++ b/e2e-tests/tests/tanstack-start.test.ts
@@ -0,0 +1,57 @@
+import { Integration } from '../../lib/Constants';
+import {
+  checkIfBuilds,
+  checkIfRunsOnDevMode,
+  checkIfRunsOnProdMode,
+  checkPackageJson,
+  createIsolatedTestEnv,
+  getWizardCommand,
+} from '../utils';
+import { afterAll, beforeAll, describe, expect, test } from 'vitest';
+
+//@ts-expect-error - clifty is ESM only
+import { KEYS, withEnv } from 'clifty';
+
+describe('TanStack Start', () => {
+  let wizardExitCode: number;
+  const { projectDir, cleanup } = createIsolatedTestEnv(
+    'tanstack-start-test-app',
+  );
+
+  beforeAll(async () => {
+    wizardExitCode = await withEnv({ cwd: projectDir })
+      .defineInteraction()
+      .whenAsked('Please select your package manager.')
+      .respondWith(KEYS.DOWN, KEYS.ENTER)
+      .expectOutput('Installing @sentry/tanstackstart-react')
+      .expectOutput('Installed @sentry/tanstackstart-react', {
+        timeout: 240_000,
+      })
+      .expectOutput('Successfully installed the Sentry TanStack Start SDK!')
+      .run(getWizardCommand(Integration.tanstackStart));
+  });
+
+  afterAll(() => {
+    cleanup();
+  });
+
+  test('exits with exit code 0', () => {
+    expect(wizardExitCode).toBe(0);
+  });
+
+  test('package.json is updated correctly', () => {
+    checkPackageJson(projectDir, '@sentry/tanstackstart-react');
+  });
+
+  test('builds successfully', async () => {
+    await checkIfBuilds(projectDir);
+  });
+
+  test('runs on dev mode correctly', async () => {
+    await checkIfRunsOnDevMode(projectDir, 'ready in');
+  });
+
+  test('runs on prod mode correctly', async () => {
+    await checkIfRunsOnProdMode(projectDir, 'Listening on');
+  });
+});
diff --git a/lib/Constants.ts b/lib/Constants.ts
index 92cab6c4a..e70538239 100644
--- a/lib/Constants.ts
+++ b/lib/Constants.ts
@@ -13,6 +13,7 @@ export enum Integration {
   remix = 'remix',
   reactRouter = 'reactRouter',
   sveltekit = 'sveltekit',
+  tanstackStart = 'tanstackStart',
   sourcemaps = 'sourcemaps',
 }
 
@@ -69,6 +70,8 @@ export function getIntegrationDescription(type: string): string {
       return 'iOS';
     case Integration.cloudflare:
       return 'Cloudflare';
+    case Integration.tanstackStart:
+      return 'TanStack Start';
     default:
       return 'React Native';
   }
@@ -100,6 +103,8 @@ export function mapIntegrationToPlatform(type: string): string | undefined {
       return undefined;
     case Integration.cloudflare:
       return 'node-cloudflare-workers';
+    case Integration.tanstackStart:
+      return 'javascript-tanstack-start';
     case Integration.ios:
       return 'iOS';
     default:
diff --git a/src/run.ts b/src/run.ts
index c3304b08e..a5a7e906c 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -17,6 +17,7 @@ import { runSourcemapsWizard } from './sourcemaps/sourcemaps-wizard';
 import { runSvelteKitWizard } from './sveltekit/sveltekit-wizard';
 import { runReactRouterWizard } from './react-router/react-router-wizard';
 import { runCloudflareWizard } from './cloudflare/cloudflare-wizard';
+import { runTanstackStartWizard } from './tanstack-start/tanstack-start-wizard';
 import { enableDebugLogs } from './utils/debug';
 import type { PreselectedProject, WizardOptions } from './utils/types';
 import { WIZARD_VERSION } from './version';
@@ -35,6 +36,7 @@ type WizardIntegration =
   | 'reactRouter'
   | 'sveltekit'
   | 'cloudflare'
+  | 'tanstackStart'
   | 'sourcemaps';
 
 type Args = {
@@ -131,6 +133,7 @@ export async function run(argv: Args) {
           { value: 'reactRouter', label: 'React Router' },
           { value: 'sveltekit', label: 'SvelteKit' },
           { value: 'cloudflare', label: 'Cloudflare' },
+          { value: 'tanstackStart', label: 'TanStack Start' },
           { value: 'sourcemaps', label: 'Configure Source Maps Upload' },
         ],
       }),
@@ -206,6 +209,10 @@ export async function run(argv: Args) {
       await runCloudflareWizard(wizardOptions);
       break;
 
+    case 'tanstackStart':
+      await runTanstackStartWizard(wizardOptions);
+      break;
+
     case 'sourcemaps':
       await runSourcemapsWizard(wizardOptions);
       break;
diff --git a/src/tanstack-start/tanstack-start-wizard.ts b/src/tanstack-start/tanstack-start-wizard.ts
new file mode 100644
index 000000000..a69f7ab24
--- /dev/null
+++ b/src/tanstack-start/tanstack-start-wizard.ts
@@ -0,0 +1,85 @@
+// @ts-expect-error - clack is ESM and TS complains about that. It works though
+import clack from '@clack/prompts';
+import chalk from 'chalk';
+
+import type { WizardOptions } from '../utils/types';
+import { withTelemetry } from '../telemetry';
+import {
+  abort,
+  confirmContinueIfNoOrDirtyGitRepo,
+  getOrAskForProjectData,
+  getPackageDotJson,
+  printWelcome,
+  installPackage,
+} from '../utils/clack';
+import { hasPackageInstalled } from '../utils/package-json';
+import { abortIfSpotlightNotSupported } from '../utils/abort-if-sportlight-not-supported';
+
+export async function runTanstackStartWizard(
+  options: WizardOptions,
+): Promise<void> {
+  return withTelemetry(
+    {
+      enabled: options.telemetryEnabled,
+      integration: 'tanstackStart',
+      wizardOptions: options,
+    },
+    () => runTanstackStartWizardWithTelemetry(options),
+  );
+}
+
+async function runTanstackStartWizardWithTelemetry(
+  options: WizardOptions,
+): Promise<void> {
+  const { promoCode, ignoreGitChanges, forceInstall } = options;
+
+  printWelcome({
+    wizardName: 'Sentry TanStack Start Wizard',
+    promoCode,
+  });
+
+  const packageJson = await getPackageDotJson();
+
+  if (!packageJson) {
+    clack.log.error(
+      'Could not find a package.json file in the current directory',
+    );
+    return;
+  }
+
+  if (!hasPackageInstalled('@tanstack/react-start', packageJson)) {
+    await abort(
+      'This wizard requires a TanStack Start project. Please make sure you have @tanstack/react-start installed.',
+    );
+    return;
+  }
+
+  await confirmContinueIfNoOrDirtyGitRepo({
+    ignoreGitChanges,
+    cwd: undefined,
+  });
+
+  const sentryAlreadyInstalled = hasPackageInstalled(
+    '@sentry/tanstackstart-react',
+    packageJson,
+  );
+
+  const projectData = await getOrAskForProjectData(
+    options,
+    'javascript-tanstack-start',
+  );
+
+  if (projectData.spotlight) {
+    return abortIfSpotlightNotSupported('TanStack Start');
+  }
+
+  await installPackage({
+    packageName: '@sentry/tanstackstart-react',
+    alreadyInstalled: sentryAlreadyInstalled,
+    forceInstall,
+  });
+
+  clack.outro(
+    `${chalk.green('Successfully installed the Sentry TanStack Start SDK!')}`,
+  );
+}
diff --git a/src/utils/clack/index.ts b/src/utils/clack/index.ts
index 122112ab6..35f0bc205 100644
--- a/src/utils/clack/index.ts
+++ b/src/utils/clack/index.ts
@@ -1188,6 +1188,7 @@ export async function getOrAskForProjectData(
     | 'javascript-react-router'
     | 'javascript-remix'
     | 'javascript-sveltekit'
+    | 'javascript-tanstack-start'
     | 'node-cloudflare-workers'
     | 'apple-ios'
     | 'android'
@@ -1376,6 +1377,7 @@ export async function askForWizardLogin(options: {
     | 'javascript-react-router'
     | 'javascript-remix'
     | 'javascript-sveltekit'
+    | 'javascript-tanstack-start'
     | 'node-cloudflare-workers'
     | 'apple-ios'
     | 'android'