diff --git a/docs/reference/deprecated.md b/docs/reference/deprecated.md
index d6b5aeece2b695..4c154b55212028 100644
--- a/docs/reference/deprecated.md
+++ b/docs/reference/deprecated.md
@@ -7,6 +7,7 @@ Gutenberg's deprecation policy is intended to support backwards-compatibility fo
 - `wp.editor.getColorName` has been removed. Please use `wp.editor.getColorObjectByColorValue` instead.
 - `wp.editor.getColorClass` has been renamed. Please use `wp.editor.getColorClassName` instead.
 - `value` property in color objects passed by `wp.editor.withColors` has been removed. Please use color property instead.
+- The Subheading block has been removed. Please use the Paragraph block instead.
 
 ## 3.8.0
 
diff --git a/packages/block-library/src/subhead/index.js b/packages/block-library/src/subhead/index.js
index 14adc20366f780..7ea6455b33d40b 100644
--- a/packages/block-library/src/subhead/index.js
+++ b/packages/block-library/src/subhead/index.js
@@ -1,6 +1,7 @@
 /**
  * WordPress dependencies
  */
+import deprecated from '@wordpress/deprecated';
 import { __ } from '@wordpress/i18n';
 import { Fragment } from '@wordpress/element';
 import { createBlock } from '@wordpress/blocks';
@@ -13,15 +14,17 @@ import {
 export const name = 'core/subhead';
 
 export const settings = {
-	title: __( 'Subheading' ),
+	title: __( 'Subheading (deprecated)' ),
 
-	description: __( 'What’s a subhead? Smaller than a headline, bigger than basic text.' ),
+	description: __( 'This block is deprecated. Please use the Paragraph block instead.' ),
 
 	icon: <svg role="img" aria-hidden="true" focusable="false" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M7.1 6l-.5 3h4.5L9.4 19h3l1.8-10h4.5l.5-3H7.1z" /></svg>,
 
 	category: 'common',
 
 	supports: {
+		// Hide from inserter as this block is deprecated.
+		inserter: false,
 		multiple: false,
 	},
 
@@ -37,26 +40,12 @@ export const settings = {
 	},
 
 	transforms: {
-		from: [
-			{
-				type: 'block',
-				blocks: [ 'core/paragraph' ],
-				transform: ( { content } ) => {
-					return createBlock( 'core/subhead', {
-						content,
-					} );
-				},
-			},
-		],
 		to: [
 			{
 				type: 'block',
 				blocks: [ 'core/paragraph' ],
-				transform: ( { content } ) => {
-					return createBlock( 'core/paragraph', {
-						content,
-					} );
-				},
+				transform: ( attributes ) =>
+					createBlock( 'core/paragraph', attributes ),
 			},
 		],
 	},
@@ -64,6 +53,11 @@ export const settings = {
 	edit( { attributes, setAttributes, className } ) {
 		const { align, content, placeholder } = attributes;
 
+		deprecated( 'The Subheading block', {
+			alternative: 'the Paragraph block',
+			plugin: 'Gutenberg',
+		} );
+
 		return (
 			<Fragment>
 				<BlockControls>