diff --git a/packages/react-native/Libraries/Core/__tests__/polyfillArrayES2023Methods-itest.js b/packages/react-native/Libraries/Core/__tests__/polyfillArrayES2023Methods-itest.js
new file mode 100644
index 000000000000..7e2c5342e15a
--- /dev/null
+++ b/packages/react-native/Libraries/Core/__tests__/polyfillArrayES2023Methods-itest.js
@@ -0,0 +1,48 @@
+/**
+ * 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
+ * @fantom_hermes_variant *
+ */
+
+'use strict';
+
+const originalToSorted = Array.prototype.toSorted;
+const originalToReversed = Array.prototype.toReversed;
+
+require('@react-native/fantom/src/setUpDefaultReactNativeEnvironment');
+
+describe('Array ES2023 method polyfills', () => {
+  it('preserves native methods and fills missing methods', () => {
+    if (originalToSorted == null) {
+      expect(Array.prototype.toSorted).toBeDefined();
+    } else {
+      expect(Array.prototype.toSorted).toBe(originalToSorted);
+    }
+
+    if (originalToReversed == null) {
+      expect(Array.prototype.toReversed).toBeDefined();
+    } else {
+      expect(Array.prototype.toReversed).toBe(originalToReversed);
+    }
+  });
+
+  it('provides non-mutating copying behavior', () => {
+    const input = [3, 1, 2];
+
+    expect(input.toSorted((a, b) => a - b)).toEqual([1, 2, 3]);
+    expect(input.toReversed()).toEqual([2, 1, 3]);
+    expect(input).toEqual([3, 1, 2]);
+    expect(
+      Object.getOwnPropertyDescriptor(Array.prototype, 'toSorted')?.enumerable,
+    ).toBe(false);
+    expect(
+      Object.getOwnPropertyDescriptor(Array.prototype, 'toReversed')
+        ?.enumerable,
+    ).toBe(false);
+  });
+});
diff --git a/packages/react-native/Libraries/Core/polyfillArrayES2023Methods.js b/packages/react-native/Libraries/Core/polyfillArrayES2023Methods.js
new file mode 100644
index 000000000000..1cb5dcf9df4c
--- /dev/null
+++ b/packages/react-native/Libraries/Core/polyfillArrayES2023Methods.js
@@ -0,0 +1,40 @@
+/**
+ * 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
+ * @format
+ */
+
+'use strict';
+
+const arrayPrototype = Array.prototype;
+
+if (arrayPrototype.toSorted == null) {
+  Object.defineProperty(arrayPrototype, 'toSorted' as string, {
+    configurable: true,
+    value: function <T>(
+      this: Array<T>,
+      compareFn?: (a: T, b: T) => number,
+    ): Array<T> {
+      const copy = Array.from(this);
+      copy.sort(compareFn);
+      return copy;
+    },
+    writable: true,
+  });
+}
+
+if (arrayPrototype.toReversed == null) {
+  Object.defineProperty(arrayPrototype, 'toReversed' as string, {
+    configurable: true,
+    value: function <T>(this: Array<T>): Array<T> {
+      const copy = Array.from(this);
+      copy.reverse();
+      return copy;
+    },
+    writable: true,
+  });
+}
diff --git a/packages/react-native/src/private/setup/setUpDefaultReactNativeEnvironment.js b/packages/react-native/src/private/setup/setUpDefaultReactNativeEnvironment.js
index b05bd70cb88c..5cd169a5377f 100644
--- a/packages/react-native/src/private/setup/setUpDefaultReactNativeEnvironment.js
+++ b/packages/react-native/src/private/setup/setUpDefaultReactNativeEnvironment.js
@@ -23,6 +23,7 @@ export default function setUpDefaultReactNativeEnvironment(
   require('./setUpDOM').default();
   require('./setUpPerformance').default();
   require('../../../Libraries/Core/polyfillPromise');
+  require('../../../Libraries/Core/polyfillArrayES2023Methods');
   require('../../../Libraries/Core/setUpTimers');
   if (__DEV__ && enableDeveloperTools) {
     require('../../../Libraries/Core/setUpReactDevTools');