diff --git a/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-benchmark-itest.js b/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-benchmark-itest.js
new file mode 100644
index 00000000000..165e087af41
--- /dev/null
+++ b/packages/react-native/src/private/webapis/structuredClone/__tests__/structuredClone-benchmark-itest.js
@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ * @oncall react_native
+ */
+
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
+
+import * as Fantom from '@react-native/fantom';
+import structuredClone from 'react-native/src/private/webapis/structuredClone/structuredClone';
+
+const basicArray = [1, 2, 3];
+const basicObject = {a: 1, b: 2, c: 3};
+const complexObject = {
+  a: 1,
+  b: 'foo',
+  c: false,
+  d: undefined,
+  e: {
+    f: {
+      g: [1, 'foo', 'bar'],
+    },
+  },
+};
+
+Fantom.unstable_benchmark
+  .suite('structuredClone')
+  .test('clone a string', () => {
+    structuredClone('hello world');
+  })
+  .test('clone a basic array', () => {
+    structuredClone(basicArray);
+  })
+  .test('clone a basic object', () => {
+    structuredClone(basicObject);
+  })
+  .test('clone a complex object', () => {
+    structuredClone(complexObject);
+  });