diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index dfe0f224c8f360..8f66a3f9f2171e 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -856,7 +856,7 @@ Displays the name of this site. Update the block, and the changes apply everywhe
 -	**Name:** core/site-title
 -	**Category:** theme
 -	**Supports:** align (full, wide), color (background, gradients, link, text), interactivity (clientNavigation), spacing (margin, padding), typography (fontSize, lineHeight), ~~html~~
--	**Attributes:** isLink, level, linkTarget, textAlign
+-	**Attributes:** isLink, level, levelOptions, linkTarget, textAlign
 
 ## Social Icon
 
diff --git a/packages/block-library/src/site-title/block.json b/packages/block-library/src/site-title/block.json
index 95d8deb1e43b9d..c75b1bc229beb9 100644
--- a/packages/block-library/src/site-title/block.json
+++ b/packages/block-library/src/site-title/block.json
@@ -11,6 +11,10 @@
 			"type": "number",
 			"default": 1
 		},
+		"levelOptions": {
+			"type": "array",
+			"default": [ 0, 1, 2, 3, 4, 5, 6 ]
+		},
 		"textAlign": {
 			"type": "string"
 		},
diff --git a/packages/block-library/src/site-title/edit.js b/packages/block-library/src/site-title/edit.js
index 76519ac1297b14..82e3c1d7f7bb40 100644
--- a/packages/block-library/src/site-title/edit.js
+++ b/packages/block-library/src/site-title/edit.js
@@ -21,14 +21,12 @@ import { ToggleControl, PanelBody } from '@wordpress/components';
 import { createBlock, getDefaultBlockName } from '@wordpress/blocks';
 import { decodeEntities } from '@wordpress/html-entities';
 
-const HEADING_LEVELS = [ 0, 1, 2, 3, 4, 5, 6 ];
-
 export default function SiteTitleEdit( {
 	attributes,
 	setAttributes,
 	insertBlocksAfter,
 } ) {
-	const { level, textAlign, isLink, linkTarget } = attributes;
+	const { level, levelOptions, textAlign, isLink, linkTarget } = attributes;
 	const { canUserEdit, title } = useSelect( ( select ) => {
 		const { canUser, getEntityRecord, getEditedEntityRecord } =
 			select( coreStore );
@@ -97,8 +95,8 @@ export default function SiteTitleEdit( {
 		<>
 			<BlockControls group="block">
 				<HeadingLevelDropdown
-					options={ HEADING_LEVELS }
 					value={ level }
+					options={ levelOptions }
 					onChange={ ( newLevel ) =>
 						setAttributes( { level: newLevel } )
 					}
diff --git a/test/integration/fixtures/blocks/core__site-title.json b/test/integration/fixtures/blocks/core__site-title.json
index 12f32615473cc8..8ca7091f30d5e7 100644
--- a/test/integration/fixtures/blocks/core__site-title.json
+++ b/test/integration/fixtures/blocks/core__site-title.json
@@ -4,6 +4,7 @@
 		"isValid": true,
 		"attributes": {
 			"level": 1,
+			"levelOptions": [ 0, 1, 2, 3, 4, 5, 6 ],
 			"isLink": true,
 			"linkTarget": "_self"
 		},