diff --git a/packages/react-client/src/forks/ReactFlightClientConfig.markup.js b/packages/react-client/src/forks/ReactFlightClientConfig.markup.js
index b8002483d81aa..a90acefccba39 100644
--- a/packages/react-client/src/forks/ReactFlightClientConfig.markup.js
+++ b/packages/react-client/src/forks/ReactFlightClientConfig.markup.js
@@ -25,7 +25,7 @@ export function prepareDestinationForModule(
   metadata: ClientReferenceMetadata,
 ) {
   throw new Error(
-    'renderToMarkup should not have emitted Client References. This is a bug in React.',
+    'renderToHTML should not have emitted Client References. This is a bug in React.',
   );
 }
 
@@ -34,7 +34,7 @@ export function resolveClientReference<T>(
   metadata: ClientReferenceMetadata,
 ): ClientReference<T> {
   throw new Error(
-    'renderToMarkup should not have emitted Client References. This is a bug in React.',
+    'renderToHTML should not have emitted Client References. This is a bug in React.',
   );
 }
 
@@ -43,7 +43,7 @@ export function resolveServerReference<T>(
   id: ServerReferenceId,
 ): ClientReference<T> {
   throw new Error(
-    'renderToMarkup should not have emitted Server References. This is a bug in React.',
+    'renderToHTML should not have emitted Server References. This is a bug in React.',
   );
 }
 
@@ -55,7 +55,7 @@ export function preloadModule<T>(
 
 export function requireModule<T>(metadata: ClientReference<T>): T {
   throw new Error(
-    'renderToMarkup should not have emitted Client References. This is a bug in React.',
+    'renderToHTML should not have emitted Client References. This is a bug in React.',
   );
 }
 
diff --git a/packages/react-markup/README.md b/packages/react-markup/README.md
index 0498648303e8a..103e656f8aa1e 100644
--- a/packages/react-markup/README.md
+++ b/packages/react-markup/README.md
@@ -11,13 +11,13 @@ npm install react react-markup
 ## Usage
 
 ```js
-import { renderToMarkup } from 'react-markup';
+import { renderToHTML } from 'react-markup';
 import EmailTemplate from './my-email-template-component.js'
 
 async function action(email, name) {
   "use server";
   // ... in your server, e.g. a Server Action...
-  const htmlString = await renderToMarkup(<EmailTemplate name={name} />);
+  const htmlString = await renderToHTML(<EmailTemplate name={name} />);
   // ... send e-mail using some e-mail provider
   await sendEmail({ to: email, contentType: 'text/html', body: htmlString });
 }
diff --git a/packages/react-markup/src/ReactFizzConfigMarkup.js b/packages/react-markup/src/ReactFizzConfigMarkup.js
index 0be7abe8bb0ad..6b43d0bad39a7 100644
--- a/packages/react-markup/src/ReactFizzConfigMarkup.js
+++ b/packages/react-markup/src/ReactFizzConfigMarkup.js
@@ -95,14 +95,14 @@ export function pushStartInstance(
       const propValue = props[propKey];
       if (propKey === 'ref' && propValue != null) {
         throw new Error(
-          'Cannot pass ref in renderToMarkup because they will never be hydrated.',
+          'Cannot pass ref in renderToHTML because they will never be hydrated.',
         );
       }
       if (typeof propValue === 'function') {
         throw new Error(
           'Cannot pass event handlers (' +
             propKey +
-            ') in renderToMarkup because ' +
+            ') in renderToHTML because ' +
             'the HTML will never be hydrated so they can never get called.',
         );
       }
diff --git a/packages/react-markup/src/ReactMarkupClient.js b/packages/react-markup/src/ReactMarkupClient.js
index 66b69df99bb18..4fb18e27c7d5b 100644
--- a/packages/react-markup/src/ReactMarkupClient.js
+++ b/packages/react-markup/src/ReactMarkupClient.js
@@ -31,7 +31,7 @@ type MarkupOptions = {
   onError?: (error: mixed, errorInfo: ErrorInfo) => ?string,
 };
 
-export function renderToMarkup(
+export function renderToHTML(
   children: ReactNodeList,
   options?: MarkupOptions,
 ): Promise<string> {
diff --git a/packages/react-markup/src/ReactMarkupServer.js b/packages/react-markup/src/ReactMarkupServer.js
index 7cbab9d430ec6..c6d71e976b256 100644
--- a/packages/react-markup/src/ReactMarkupServer.js
+++ b/packages/react-markup/src/ReactMarkupServer.js
@@ -71,11 +71,11 @@ type MarkupOptions = {
 
 function noServerCallOrFormAction() {
   throw new Error(
-    'renderToMarkup should not have emitted Server References. This is a bug in React.',
+    'renderToHTML should not have emitted Server References. This is a bug in React.',
   );
 }
 
-export function renderToMarkup(
+export function renderToHTML(
   children: ReactMarkupNodeList,
   options?: MarkupOptions,
 ): Promise<string> {
diff --git a/packages/react-markup/src/__tests__/ReactMarkupClient-test.js b/packages/react-markup/src/__tests__/ReactMarkupClient-test.js
index 186a1baf7b3b3..a9193474234bb 100644
--- a/packages/react-markup/src/__tests__/ReactMarkupClient-test.js
+++ b/packages/react-markup/src/__tests__/ReactMarkupClient-test.js
@@ -43,7 +43,7 @@ if (!__EXPERIMENTAL__) {
         return <div>hello world</div>;
       }
 
-      const html = await ReactMarkup.renderToMarkup(<Component />);
+      const html = await ReactMarkup.renderToHTML(<Component />);
       expect(html).toBe('<div>hello world</div>');
     });
 
@@ -52,14 +52,14 @@ if (!__EXPERIMENTAL__) {
         return <div>{'hello '.repeat(200)}world</div>;
       }
 
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         React.createElement(Component),
       );
       expect(html).toBe('<div>' + ('hello '.repeat(200) + 'world') + '</div>');
     });
 
     it('should prefix html tags with a doctype', async () => {
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         <html>
           <body>hello</body>
         </html>,
@@ -76,7 +76,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(<Component />);
+        await ReactMarkup.renderToHTML(<Component />);
       }).rejects.toThrow();
     });
 
@@ -87,7 +87,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(<Component />);
+        await ReactMarkup.renderToHTML(<Component />);
       }).rejects.toThrow();
     });
 
@@ -100,7 +100,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(<Component />);
+        await ReactMarkup.renderToHTML(<Component />);
       }).rejects.toThrow();
     });
 
@@ -142,7 +142,7 @@ if (!__EXPERIMENTAL__) {
         );
       }
 
-      const html = await ReactMarkup.renderToMarkup(<Component />);
+      const html = await ReactMarkup.renderToHTML(<Component />);
       const container = document.createElement('div');
       container.innerHTML = html;
 
@@ -176,7 +176,7 @@ if (!__EXPERIMENTAL__) {
         );
       }
 
-      const html = await ReactMarkup.renderToMarkup(<Component />);
+      const html = await ReactMarkup.renderToHTML(<Component />);
       expect(html).toBe('<div>01</div>');
     });
 
@@ -199,7 +199,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(
+        await ReactMarkup.renderToHTML(
           <div>
             <Foo />
           </div>,
diff --git a/packages/react-markup/src/__tests__/ReactMarkupServer-test.js b/packages/react-markup/src/__tests__/ReactMarkupServer-test.js
index 350f765c1715e..169c4ba5e6c5b 100644
--- a/packages/react-markup/src/__tests__/ReactMarkupServer-test.js
+++ b/packages/react-markup/src/__tests__/ReactMarkupServer-test.js
@@ -64,7 +64,7 @@ if (!__EXPERIMENTAL__) {
         return React.createElement('div', null, 'hello world');
       }
 
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         React.createElement(Component),
       );
       expect(html).toBe('<div>hello world</div>');
@@ -76,14 +76,14 @@ if (!__EXPERIMENTAL__) {
         return React.createElement('div', null, 'hello '.repeat(200) + 'world');
       }
 
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         React.createElement(Component),
       );
       expect(html).toBe('<div>' + ('hello '.repeat(200) + 'world') + '</div>');
     });
 
     it('should prefix html tags with a doctype', async () => {
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         // We can't use JSX because that's client-JSX in our tests.
         React.createElement(
           'html',
@@ -104,7 +104,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(React.createElement(Component));
+        await ReactMarkup.renderToHTML(React.createElement(Component));
       }).rejects.toThrow();
     });
 
@@ -116,7 +116,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(React.createElement(Component));
+        await ReactMarkup.renderToHTML(React.createElement(Component));
       }).rejects.toThrow();
     });
 
@@ -130,7 +130,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(React.createElement(Component));
+        await ReactMarkup.renderToHTML(React.createElement(Component));
       }).rejects.toThrow();
     });
 
@@ -173,7 +173,7 @@ if (!__EXPERIMENTAL__) {
         );
       }
 
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         React.createElement(Component),
       );
       const container = document.createElement('div');
@@ -204,7 +204,7 @@ if (!__EXPERIMENTAL__) {
         return React.createElement('div', null, a, b);
       }
 
-      const html = await ReactMarkup.renderToMarkup(
+      const html = await ReactMarkup.renderToHTML(
         React.createElement(Component),
       );
       expect(html).toBe('<div>00</div>');
@@ -225,7 +225,7 @@ if (!__EXPERIMENTAL__) {
       }
 
       await expect(async () => {
-        await ReactMarkup.renderToMarkup(
+        await ReactMarkup.renderToHTML(
           React.createElement('div', null, React.createElement(Foo)),
           {
             onError(error, errorInfo) {
diff --git a/packages/react-server/src/ReactFizzHooks.js b/packages/react-server/src/ReactFizzHooks.js
index f5965c4f69096..9d0d9f6c877d8 100644
--- a/packages/react-server/src/ReactFizzHooks.js
+++ b/packages/react-server/src/ReactFizzHooks.js
@@ -809,7 +809,7 @@ function noop(): void {}
 
 function clientHookNotSupported() {
   throw new Error(
-    'Cannot use state or effect Hooks in renderToMarkup because ' +
+    'Cannot use state or effect Hooks in renderToHTML because ' +
       'this component will never be hydrated.',
   );
 }
diff --git a/packages/react-server/src/forks/ReactFlightServerConfig.markup.js b/packages/react-server/src/forks/ReactFlightServerConfig.markup.js
index 52a10506bd140..12feb37ac5697 100644
--- a/packages/react-server/src/forks/ReactFlightServerConfig.markup.js
+++ b/packages/react-server/src/forks/ReactFlightServerConfig.markup.js
@@ -52,9 +52,9 @@ export function getClientReferenceKey(
   reference: ClientReference<any>,
 ): ClientReferenceKey {
   throw new Error(
-    'Attempted to render a Client Component from renderToMarkup. ' +
+    'Attempted to render a Client Component from renderToHTML. ' +
       'This is not supported since it will never hydrate. ' +
-      'Only render Server Components with renderToMarkup.',
+      'Only render Server Components with renderToHTML.',
   );
 }
 
@@ -63,9 +63,9 @@ export function resolveClientReferenceMetadata<T>(
   clientReference: ClientReference<T>,
 ): ClientReferenceMetadata {
   throw new Error(
-    'Attempted to render a Client Component from renderToMarkup. ' +
+    'Attempted to render a Client Component from renderToHTML. ' +
       'This is not supported since it will never hydrate. ' +
-      'Only render Server Components with renderToMarkup.',
+      'Only render Server Components with renderToHTML.',
   );
 }
 
@@ -74,7 +74,7 @@ export function getServerReferenceId<T>(
   serverReference: ServerReference<T>,
 ): ServerReferenceId {
   throw new Error(
-    'Attempted to render a Server Action from renderToMarkup. ' +
+    'Attempted to render a Server Action from renderToHTML. ' +
       'This is not supported since it varies by version of the app. ' +
       'Use a fixed URL for any forms instead.',
   );
@@ -85,7 +85,7 @@ export function getServerReferenceBoundArguments<T>(
   serverReference: ServerReference<T>,
 ): null | Array<ReactClientValue> {
   throw new Error(
-    'Attempted to render a Server Action from renderToMarkup. ' +
+    'Attempted to render a Server Action from renderToHTML. ' +
       'This is not supported since it varies by version of the app. ' +
       'Use a fixed URL for any forms instead.',
   );
diff --git a/scripts/error-codes/codes.json b/scripts/error-codes/codes.json
index b1286a7daf7c0..572ffd21fd8b5 100644
--- a/scripts/error-codes/codes.json
+++ b/scripts/error-codes/codes.json
@@ -517,13 +517,13 @@
   "529": "Expected stylesheet with precedence to not be updated to a different kind of <link>. Check the `rel`, `href`, and `precedence` props of this component. Alternatively, check whether two different <link> components render in the same slot or share the same key.%s",
   "530": "The render was aborted by the server with a promise.",
   "531": "react-markup is not supported outside a React Server Components environment.",
-  "532": "Attempted to render a Client Component from renderToMarkup. This is not supported since it will never hydrate. Only render Server Components with renderToMarkup.",
-  "533": "Attempted to render a Server Action from renderToMarkup. This is not supported since it varies by version of the app. Use a fixed URL for any forms instead.",
-  "534": "renderToMarkup should not have emitted Client References. This is a bug in React.",
-  "535": "renderToMarkup should not have emitted Server References. This is a bug in React.",
-  "536": "Cannot pass ref in renderToMarkup because they will never be hydrated.",
-  "537": "Cannot pass event handlers (%s) in renderToMarkup because the HTML will never be hydrated so they can never get called.",
-  "538": "Cannot use state or effect Hooks in renderToMarkup because this component will never be hydrated.",
+  "532": "Attempted to render a Client Component from renderToHTML. This is not supported since it will never hydrate. Only render Server Components with renderToHTML.",
+  "533": "Attempted to render a Server Action from renderToHTML. This is not supported since it varies by version of the app. Use a fixed URL for any forms instead.",
+  "534": "renderToHTML should not have emitted Client References. This is a bug in React.",
+  "535": "renderToHTML should not have emitted Server References. This is a bug in React.",
+  "536": "Cannot pass ref in renderToHTML because they will never be hydrated.",
+  "537": "Cannot pass event handlers (%s) in renderToHTML because the HTML will never be hydrated so they can never get called.",
+  "538": "Cannot use state or effect Hooks in renderToHTML because this component will never be hydrated.",
   "539": "Binary RSC chunks cannot be encoded as strings. This is a bug in the wiring of the React streams.",
   "540": "String chunks need to be passed in their original shape. Not split into smaller string chunks. This is a bug in the wiring of the React streams.",
   "541": "Compared context values must be arrays"