diff --git a/packages/editor/src/components/autocompleters/test/user.js b/packages/editor/src/components/autocompleters/test/user.js
index f699ebfbfd2022..3ef0e41549c7e9 100644
--- a/packages/editor/src/components/autocompleters/test/user.js
+++ b/packages/editor/src/components/autocompleters/test/user.js
@@ -1,34 +1,31 @@
 /**
  * Internal dependencies
  */
-import userCompleter from '../user';
+import { getUserLabel } from '../user';
 
 describe( 'user', () => {
-	describe( 'getOptionLabel', () => {
+	describe( 'getUserLabel', () => {
 		it( 'should return user details fragment', () => {
 			const user = {
 				name: 'Smithers Jones',
 				slug: 'userSlug',
 				avatar_urls: { 24: 'http://my.avatar' },
 			};
-			const userLabel = userCompleter.getOptionLabel( user );
-			expect( userLabel[ 0 ] ).toEqual(
-				<img
-					key="avatar"
-					className="editor-autocompleters__user-avatar"
-					alt=""
-					src="http://my.avatar"
-				/>
-			);
-			expect( userLabel[ 1 ] ).toEqual(
-				<span key="name" className="editor-autocompleters__user-name">
-					Smithers Jones
-				</span>
-			);
-			expect( userLabel[ 2 ] ).toEqual(
-				<span key="slug" className="editor-autocompleters__user-slug">
-					userSlug
-				</span>
+			const userLabel = getUserLabel( user );
+			expect( userLabel ).toEqual(
+				<>
+					<img
+						className="editor-autocompleters__user-avatar"
+						alt=""
+						src="http://my.avatar"
+					/>
+					<span className="editor-autocompleters__user-name">
+						Smithers Jones
+					</span>
+					<span className="editor-autocompleters__user-slug">
+						userSlug
+					</span>
+				</>
 			);
 		} );
 		it( 'should return user details fragment without default avatar dashicon if avatar_urls array not set', () => {
@@ -36,19 +33,17 @@ describe( 'user', () => {
 				name: 'Smithers Jones',
 				slug: 'userSlug',
 			};
-			const userLabel = userCompleter.getOptionLabel( user );
-			expect( userLabel[ 0 ] ).toEqual(
-				<span className="editor-autocompleters__no-avatar"></span>
-			);
-			expect( userLabel[ 1 ] ).toEqual(
-				<span key="name" className="editor-autocompleters__user-name">
-					Smithers Jones
-				</span>
-			);
-			expect( userLabel[ 2 ] ).toEqual(
-				<span key="slug" className="editor-autocompleters__user-slug">
-					userSlug
-				</span>
+			const userLabel = getUserLabel( user );
+			expect( userLabel ).toEqual(
+				<>
+					<span className="editor-autocompleters__no-avatar"></span>
+					<span className="editor-autocompleters__user-name">
+						Smithers Jones
+					</span>
+					<span className="editor-autocompleters__user-slug">
+						userSlug
+					</span>
+				</>
 			);
 		} );
 	} );
diff --git a/packages/editor/src/components/autocompleters/user.js b/packages/editor/src/components/autocompleters/user.js
index 4b8c1f2dbcf374..e176d3fb6b05a2 100644
--- a/packages/editor/src/components/autocompleters/user.js
+++ b/packages/editor/src/components/autocompleters/user.js
@@ -1,10 +1,37 @@
 /**
  * WordPress dependencies
  */
-import apiFetch from '@wordpress/api-fetch';
+import { useMemo } from '@wordpress/element';
+import { useSelect } from '@wordpress/data';
+import { store as coreStore } from '@wordpress/core-data';
 
 /** @typedef {import('@wordpress/components').WPCompleter} WPCompleter */
 
+export function getUserLabel( user ) {
+	const avatar =
+		user.avatar_urls && user.avatar_urls[ 24 ] ? (
+			<img
+				className="editor-autocompleters__user-avatar"
+				alt=""
+				src={ user.avatar_urls[ 24 ] }
+			/>
+		) : (
+			<span className="editor-autocompleters__no-avatar"></span>
+		);
+
+	return (
+		<>
+			{ avatar }
+			<span className="editor-autocompleters__user-name">
+				{ user.name }
+			</span>
+			<span className="editor-autocompleters__user-slug">
+				{ user.slug }
+			</span>
+		</>
+	);
+}
+
 /**
  * A user mentions completer.
  *
@@ -14,40 +41,34 @@ export default {
 	name: 'users',
 	className: 'editor-autocompleters__user',
 	triggerPrefix: '@',
-	options( search ) {
-		let payload = '';
-		if ( search ) {
-			payload = '?search=' + encodeURIComponent( search );
-		}
-		return apiFetch( { path: '/wp/v2/users' + payload } );
-	},
-	isDebounced: true,
-	getOptionKeywords( user ) {
-		return [ user.slug, user.name ];
-	},
-	getOptionLabel( user ) {
-		const avatar =
-			user.avatar_urls && user.avatar_urls[ 24 ] ? (
-				<img
-					key="avatar"
-					className="editor-autocompleters__user-avatar"
-					alt=""
-					src={ user.avatar_urls[ 24 ] }
-				/>
-			) : (
-				<span className="editor-autocompleters__no-avatar"></span>
-			);
-
-		return [
-			avatar,
-			<span key="name" className="editor-autocompleters__user-name">
-				{ user.name }
-			</span>,
-			<span key="slug" className="editor-autocompleters__user-slug">
-				{ user.slug }
-			</span>,
-		];
+
+	useItems( filterValue ) {
+		const users = useSelect(
+			( select ) => {
+				const { getUsers } = select( coreStore );
+				return getUsers( {
+					context: 'view',
+					search: encodeURIComponent( filterValue ),
+				} );
+			},
+			[ filterValue ]
+		);
+
+		const options = useMemo(
+			() =>
+				users
+					? users.map( ( user ) => ( {
+							key: `user-${ user.slug }`,
+							value: user,
+							label: getUserLabel( user ),
+					  } ) )
+					: [],
+			[ users ]
+		);
+
+		return [ options ];
 	},
+
 	getOptionCompletion( user ) {
 		return `@${ user.slug }`;
 	},