diff --git a/packages/react-test-renderer/src/ReactTestRenderer.js b/packages/react-test-renderer/src/ReactTestRenderer.js
index c82c33811539c..d0494de7293ed 100644
--- a/packages/react-test-renderer/src/ReactTestRenderer.js
+++ b/packages/react-test-renderer/src/ReactTestRenderer.js
@@ -52,7 +52,10 @@ import {checkPropStringCoercion} from 'shared/CheckStringCoercion';
 
 import {getPublicInstance} from './ReactFiberConfigTestHost';
 import {ConcurrentRoot, LegacyRoot} from 'react-reconciler/src/ReactRootTags';
-import {allowConcurrentByDefault} from 'shared/ReactFeatureFlags';
+import {
+  allowConcurrentByDefault,
+  enableReactTestRendererWarning,
+} from 'shared/ReactFeatureFlags';
 
 const act = React.act;
 
@@ -471,6 +474,14 @@ function create(
   getInstance(): React$Component<any, any> | PublicInstance | null,
   unstable_flushSync: typeof flushSync,
 } {
+  if (__DEV__) {
+    if (enableReactTestRendererWarning === true) {
+      console.warn(
+        'react-test-renderer is deprecated. See https://react.dev/warnings/react-test-renderer',
+      );
+    }
+  }
+
   let createNodeMock = defaultTestOptions.createNodeMock;
   let isConcurrent = false;
   let isStrictMode = false;
diff --git a/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js b/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
index 37c17c05b08ba..36b9896952b56 100644
--- a/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
+++ b/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
@@ -51,6 +51,21 @@ function cleanNodeOrArray(node) {
 }
 
 describe('ReactTestRenderer', () => {
+  beforeEach(() => {
+    jest.resetModules();
+    ReactFeatureFlags.enableReactTestRendererWarning = false;
+  });
+
+  it('should warn if enableReactTestRendererWarning is enabled', () => {
+    ReactFeatureFlags.enableReactTestRendererWarning = true;
+    expect(() => {
+      ReactTestRenderer.create(<div />);
+    }).toWarnDev(
+      'Warning: react-test-renderer is deprecated. See https://react.dev/warnings/react-test-renderer',
+      {withoutStack: true},
+    );
+  });
+
   it('renders a simple component', () => {
     function Link() {
       return <a role="link" />;
diff --git a/packages/shared/ReactFeatureFlags.js b/packages/shared/ReactFeatureFlags.js
index 8a503e433ff30..be3f6745d6192 100644
--- a/packages/shared/ReactFeatureFlags.js
+++ b/packages/shared/ReactFeatureFlags.js
@@ -185,6 +185,11 @@ export const enableInfiniteRenderLoopDetection = true;
 // during element creation.
 export const enableRefAsProp = __NEXT_MAJOR__;
 
+// Not ready to break experimental yet.
+// Needs more internal cleanup
+// Warn on any usage of ReactTestRenderer
+export const enableReactTestRendererWarning = false;
+
 // -----------------------------------------------------------------------------
 // Chopping Block
 //
diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
index 3a7dad1b9c8a5..9d8031647b050 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -101,5 +101,7 @@ export const enableInfiniteRenderLoopDetection = false;
 // because JSX is an extremely hot path.
 export const enableRefAsProp = false;
 
+export const enableReactTestRendererWarning = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.native-oss.js b/packages/shared/forks/ReactFeatureFlags.native-oss.js
index ac09110a4a517..611dcc54c32a1 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-oss.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-oss.js
@@ -92,5 +92,7 @@ export const enableServerComponentKeys = true;
 // TODO: Should turn this on in next "major" RN release.
 export const enableRefAsProp = false;
 
+export const enableReactTestRendererWarning = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
index e5dc5fe25cfee..eb0601ce34bb4 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
@@ -97,6 +97,7 @@ export const enableInfiniteRenderLoopDetection = false;
 // flags should be handled by the Fiber config.
 const __NEXT_MAJOR__ = __EXPERIMENTAL__;
 export const enableRefAsProp = __NEXT_MAJOR__;
+export const enableReactTestRendererWarning = false;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
index 6081e57da8ef4..bbeaef2b2c4d4 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
@@ -88,5 +88,7 @@ export const enableServerComponentKeys = true;
 
 export const enableRefAsProp = false;
 
+export const enableReactTestRendererWarning = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
index 6694b6b8afeff..91613dd4df5a2 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
@@ -91,5 +91,7 @@ export const enableInfiniteRenderLoopDetection = false;
 
 export const enableRefAsProp = false;
 
+export const enableReactTestRendererWarning = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index 2babd5bcd695c..a34757b760c44 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -120,5 +120,7 @@ export const enableServerComponentKeys = true;
 // because JSX is an extremely hot path.
 export const enableRefAsProp = false;
 
+export const enableReactTestRendererWarning = false;
+
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);