diff --git a/packages/nuxt/src/generators/application/__snapshots__/application.spec.ts.snap b/packages/nuxt/src/generators/application/__snapshots__/application.spec.ts.snap
index 78d84c22e25a2..e454561c696dc 100644
--- a/packages/nuxt/src/generators/application/__snapshots__/application.spec.ts.snap
+++ b/packages/nuxt/src/generators/application/__snapshots__/application.spec.ts.snap
@@ -7,7 +7,8 @@ exports[`app generated files content - as-provided - my-app general application
 .nuxt
 .nitro
 .cache
-vite.config.*.timestamp*"
+vite.config.*.timestamp*
+vitest.config.*.timestamp*"
 `;
 
 exports[`app generated files content - as-provided - my-app general application should add the nuxt and vitest plugins 1`] = `
@@ -366,7 +367,8 @@ exports[`app generated files content - as-provided - myApp general application s
 .nuxt
 .nitro
 .cache
-vite.config.*.timestamp*"
+vite.config.*.timestamp*
+vitest.config.*.timestamp*"
 `;
 
 exports[`app generated files content - as-provided - myApp general application should add the nuxt and vitest plugins 1`] = `
diff --git a/packages/vite/migrations.json b/packages/vite/migrations.json
index 3307720b80906..3fa187b455d84 100644
--- a/packages/vite/migrations.json
+++ b/packages/vite/migrations.json
@@ -29,6 +29,11 @@
       "version": "20.0.6-beta.0",
       "description": "Add gitignore entry for temporary vite config files and remove previous incorrect glob.",
       "implementation": "./src/migrations/update-20-0-4/add-vite-temp-files-to-git-ignore"
+    },
+    "update-20-3-0": {
+      "version": "20.3.0-beta.2",
+      "description": "Add gitignore entry for temporary vitest config files.",
+      "implementation": "./src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore"
     }
   },
   "packageJsonUpdates": {
diff --git a/packages/vite/src/generators/init/init.spec.ts b/packages/vite/src/generators/init/init.spec.ts
index 5e590a6d778b1..b7eaf1a845008 100644
--- a/packages/vite/src/generators/init/init.spec.ts
+++ b/packages/vite/src/generators/init/init.spec.ts
@@ -137,8 +137,9 @@ describe('@nx/vite:init', () => {
     await initGenerator(tree, {});
 
     // ASSERT
-    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(
-      `"vite.config.*.timestamp*"`
-    );
+    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
+      "vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
+    `);
   });
 });
diff --git a/packages/vite/src/migrations/update-20-0-4/add-vite-temp-files-to-git-ignore.spec.ts b/packages/vite/src/migrations/update-20-0-4/add-vite-temp-files-to-git-ignore.spec.ts
index 7a007c9f95091..a1fbbf0ede685 100644
--- a/packages/vite/src/migrations/update-20-0-4/add-vite-temp-files-to-git-ignore.spec.ts
+++ b/packages/vite/src/migrations/update-20-0-4/add-vite-temp-files-to-git-ignore.spec.ts
@@ -13,7 +13,8 @@ describe('addViteTempFilesToGitIgnore', () => {
     // ASSERT
     expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
       ".idea
-      vite.config.*.timestamp*"
+      vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
     `);
   });
 
@@ -33,7 +34,8 @@ describe('addViteTempFilesToGitIgnore', () => {
     expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
       ".idea
 
-      vite.config.*.timestamp*"
+      vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
     `);
   });
 
@@ -46,8 +48,9 @@ describe('addViteTempFilesToGitIgnore', () => {
     addViteTempFilesToGitIgnore(tree);
 
     // ASSERT
-    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(
-      `"vite.config.*.timestamp*"`
-    );
+    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
+      "vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
+    `);
   });
 });
diff --git a/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.spec.ts b/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.spec.ts
new file mode 100644
index 0000000000000..8fcc9a841aa8c
--- /dev/null
+++ b/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.spec.ts
@@ -0,0 +1,56 @@
+import { createTreeWithEmptyWorkspace } from '@nx/devkit/testing';
+import addViteTempFilesToGitIgnore from './add-vitest-temp-files-to-git-ignore';
+
+describe('addViteTempFilesToGitIgnore', () => {
+  it('should update an existing .gitignore file to add the glob correctly', () => {
+    // ARRANGE
+    const tree = createTreeWithEmptyWorkspace();
+    tree.write('.gitignore', '.idea');
+
+    // ACT
+    addViteTempFilesToGitIgnore(tree);
+
+    // ASSERT
+    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
+      ".idea
+      vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
+    `);
+  });
+
+  it('should update an existing .gitignore file and remove incorrect glob and add the glob correctly', () => {
+    // ARRANGE
+    const tree = createTreeWithEmptyWorkspace();
+    tree.write(
+      '.gitignore',
+      `.idea
+      **/vitest.config.{js,ts,mjs,mts,cjs,cts}.timestamp*`
+    );
+
+    // ACT
+    addViteTempFilesToGitIgnore(tree);
+
+    // ASSERT
+    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
+      ".idea
+
+      vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
+    `);
+  });
+
+  it('should write a new .gitignore file to add the glob correctly', () => {
+    // ARRANGE
+    const tree = createTreeWithEmptyWorkspace();
+    tree.delete('.gitignore');
+
+    // ACT
+    addViteTempFilesToGitIgnore(tree);
+
+    // ASSERT
+    expect(tree.read('.gitignore', 'utf-8')).toMatchInlineSnapshot(`
+      "vite.config.*.timestamp*
+      vitest.config.*.timestamp*"
+    `);
+  });
+});
diff --git a/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.ts b/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.ts
new file mode 100644
index 0000000000000..0a6d6def75a68
--- /dev/null
+++ b/packages/vite/src/migrations/update-20-3-0/add-vitest-temp-files-to-git-ignore.ts
@@ -0,0 +1,26 @@
+import { Tree } from '@nx/devkit';
+import { addViteTempFilesToGitIgnore as _addViteTempFilesToGitIgnore } from '../../utils/add-vite-temp-files-to-gitignore';
+
+export default function addViteTempFilesToGitIgnore(tree: Tree) {
+  // need to check if .gitignore exists before adding to it
+  // then need to check if it contains the following pattern
+  // **/vite.config.{js,ts,mjs,mts,cjs,cts}.timestamp*
+  // if it does, remove just this pattern
+  if (tree.exists('.gitignore')) {
+    const gitIgnoreContents = tree.read('.gitignore', 'utf-8');
+    if (
+      gitIgnoreContents.includes(
+        '**/vitest.config.{js,ts,mjs,mts,cjs,cts}.timestamp*'
+      )
+    ) {
+      tree.write(
+        '.gitignore',
+        gitIgnoreContents.replace(
+          '**/vitest.config.{js,ts,mjs,mts,cjs,cts}.timestamp*',
+          ''
+        )
+      );
+    }
+  }
+  _addViteTempFilesToGitIgnore(tree);
+}
diff --git a/packages/vite/src/utils/add-vite-temp-files-to-gitignore.ts b/packages/vite/src/utils/add-vite-temp-files-to-gitignore.ts
index e3d603042f112..fd49446f450be 100644
--- a/packages/vite/src/utils/add-vite-temp-files-to-gitignore.ts
+++ b/packages/vite/src/utils/add-vite-temp-files-to-gitignore.ts
@@ -13,4 +13,17 @@ export function addViteTempFilesToGitIgnore(tree: Tree) {
   } else {
     tree.write('.gitignore', newGitIgnoreContents);
   }
+
+  newGitIgnoreContents = `vitest.config.*.timestamp*`;
+  if (tree.exists('.gitignore')) {
+    const gitIgnoreContents = tree.read('.gitignore', 'utf-8');
+    if (!gitIgnoreContents.includes(newGitIgnoreContents)) {
+      newGitIgnoreContents = stripIndents`${gitIgnoreContents}
+        ${newGitIgnoreContents}`;
+
+      tree.write('.gitignore', newGitIgnoreContents);
+    }
+  } else {
+    tree.write('.gitignore', newGitIgnoreContents);
+  }
 }