diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index 1a0fef056e6d2..808dbf6e384f5 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -2254,6 +2254,7 @@ function get_block_editor_server_block_settings() {
 		'parent'           => 'parent',
 		'keywords'         => 'keywords',
 		'example'          => 'example',
+		'variations'       => 'variations',
 	);
 
 	foreach ( $block_registry->get_all_registered() as $block_name => $block_type ) {
diff --git a/src/wp-includes/class-wp-block-type.php b/src/wp-includes/class-wp-block-type.php
index f4a22d638bd75..2c935d8db4b33 100644
--- a/src/wp-includes/class-wp-block-type.php
+++ b/src/wp-includes/class-wp-block-type.php
@@ -99,6 +99,12 @@ class WP_Block_Type {
 	 */
 	public $styles = array();
 
+	/**
+	 * Block variations.
+	 * @var array
+	 */
+	public $variations = array();
+
 	/**
 	 * Supported features.
 	 *
diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index 93a1b59adf172..f4a2f48fae823 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -1703,6 +1703,9 @@ function _post_type_meta_capabilities( $capabilities = null ) {
  * - `item_scheduled` - Label used when an item is scheduled for publishing. Default is 'Post scheduled.' /
  *                    'Page scheduled.'
  * - `item_updated` - Label used when an item is updated. Default is 'Post updated.' / 'Page updated.'
+ * - `item_link` - Title for a navigation link block variation. Default is 'Post Link' / 'Page Link'.
+ * - `item_link_description` - Description for a navigation link block variation. Default is 'A link to a post.' /
+ *                             'A link to a page.'
  *
  * Above, the first default value is for non-hierarchical post types (like posts)
  * and the second one is for hierarchical post types (like pages).
@@ -1726,7 +1729,7 @@ function _post_type_meta_capabilities( $capabilities = null ) {
  * @return object Object with all the labels as member variables.
  */
 function get_post_type_labels( $post_type_object ) {
-	$nohier_vs_hier_defaults              = array(
+	$nohier_vs_hier_defaults                  = array(
 		'name'                     => array( _x( 'Posts', 'post type general name' ), _x( 'Pages', 'post type general name' ) ),
 		'singular_name'            => array( _x( 'Post', 'post type singular name' ), _x( 'Page', 'post type singular name' ) ),
 		'add_new'                  => array( _x( 'Add New', 'post' ), _x( 'Add New', 'page' ) ),
@@ -1757,6 +1760,14 @@ function get_post_type_labels( $post_type_object ) {
 		'item_reverted_to_draft'   => array( __( 'Post reverted to draft.' ), __( 'Page reverted to draft.' ) ),
 		'item_scheduled'           => array( __( 'Post scheduled.' ), __( 'Page scheduled.' ) ),
 		'item_updated'             => array( __( 'Post updated.' ), __( 'Page updated.' ) ),
+		'item_link'                => array(
+			_x( 'Post Link', 'navigation link block title' ),
+			_x( 'Page Link', 'navigation link block title' ),
+		),
+		'item_link_description'    => array(
+			_x( 'A link to a post.', 'navigation link block description' ),
+			_x( 'A link to a page.', 'navigation link block description' ),
+		),
 	);
 	$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
 
diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php
index 64a1ce653acdb..f2f277e5eb94f 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php
@@ -274,6 +274,7 @@ public function prepare_item_for_response( $block_type, $request ) {
 			'script',
 			'editor_style',
 			'style',
+			'variations',
 		);
 		foreach ( $extra_fields as $extra_field ) {
 			if ( rest_is_field_included( $extra_field, $fields ) ) {
@@ -361,6 +362,71 @@ public function get_item_schema() {
 			return $this->add_additional_fields_schema( $this->schema );
 		}
 
+		//rest_validate_value_from_schema doesn't understand $refs, pull out reused definitions for readability.
+		$inner_blocks_definition = array(
+			'description' => __( 'The list of inner blocks used in the example.' ),
+			'type'        => 'array',
+			'items'       => array(
+				'type'       => 'object',
+				'properties' => array(
+					'name'        => array(
+						'description' => __( 'The name of the inner block.' ),
+						'type'        => 'string',
+					),
+					'attributes'  => array(
+						'description' => __( 'The attributes of the inner block.' ),
+						'type'        => 'object',
+					),
+					'innerBlocks' => array(
+						'description' => __( "A list of the inner block's own inner blocks. This is a recursive definition following the parent innerBlocks schema." ),
+						'type'        => 'array',
+					),
+				),
+			),
+		);
+
+		$example_definition      = array(
+			'description' => __( 'Block example.' ),
+			'type'        => array( 'object', 'null' ),
+			'default'     => null,
+			'properties'  => array(
+				'attributes'  => array(
+					'description' => __( 'The attributes used in the example.' ),
+					'type'        => 'object',
+				),
+				'innerBlocks' => $inner_blocks_definition,
+			),
+			'context'     => array( 'embed', 'view', 'edit' ),
+			'readonly'    => true,
+		);
+
+		$keywords_definition = array(
+			'description' => __( 'Block keywords.' ),
+			'type'        => 'array',
+			'items'       => array(
+				'type' => 'string',
+			),
+			'default'     => array(),
+			'context'     => array( 'embed', 'view', 'edit' ),
+			'readonly'    => true,
+		);
+
+		$icon_definition = array(
+			'description' => __( 'Icon of block type.' ),
+			'type'        => array( 'string', 'null' ),
+			'default'     => null,
+			'context'     => array( 'embed', 'view', 'edit' ),
+			'readonly'    => true,
+		);
+
+		$category_definition = array(
+			'description' => __( 'Block category.' ),
+			'type'        => array( 'string', 'null' ),
+			'default'     => null,
+			'context'     => array( 'embed', 'view', 'edit' ),
+			'readonly'    => true,
+		);
+
 		$schema = array(
 			'$schema'    => 'http://json-schema.org/draft-04/schema#',
 			'title'      => 'block-type',
@@ -394,13 +460,7 @@ public function get_item_schema() {
 					'context'     => array( 'embed', 'view', 'edit' ),
 					'readonly'    => true,
 				),
-				'icon'             => array(
-					'description' => __( 'Icon of block type.' ),
-					'type'        => array( 'string', 'null' ),
-					'default'     => null,
-					'context'     => array( 'embed', 'view', 'edit' ),
-					'readonly'    => true,
-				),
+				'icon'             => $icon_definition,
 				'attributes'       => array(
 					'description'          => __( 'Block attributes.' ),
 					'type'                 => array( 'object', 'null' ),
@@ -441,13 +501,7 @@ public function get_item_schema() {
 					'context'     => array( 'embed', 'view', 'edit' ),
 					'readonly'    => true,
 				),
-				'category'         => array(
-					'description' => __( 'Block category.' ),
-					'type'        => array( 'string', 'null' ),
-					'default'     => null,
-					'context'     => array( 'embed', 'view', 'edit' ),
-					'readonly'    => true,
-				),
+				'category'         => $category_definition,
 				'is_dynamic'       => array(
 					'description' => __( 'Is the block dynamically rendered.' ),
 					'type'        => 'boolean',
@@ -512,6 +566,58 @@ public function get_item_schema() {
 					'context'     => array( 'embed', 'view', 'edit' ),
 					'readonly'    => true,
 				),
+				'variations'       => array(
+					'description' => __( 'Block variations.' ),
+					'type'        => 'array',
+					'items'       => array(
+						'type'       => 'object',
+						'properties' => array(
+							'name'        => array(
+								'description' => __( 'The unique and machine-readable name.' ),
+								'type'        => 'string',
+								'required'    => true,
+							),
+							'title'       => array(
+								'description' => __( 'A human-readable variation title.' ),
+								'type'        => 'string',
+								'required'    => true,
+							),
+							'description' => array(
+								'description' => __( 'A detailed variation description.' ),
+								'type'        => 'string',
+								'required'    => false,
+							),
+							'category'    => $category_definition,
+							'icon'        => $icon_definition,
+							'isDefault'   => array(
+								'description' => __( 'Indicates whether the current variation is the default one.' ),
+								'type'        => 'boolean',
+								'required'    => false,
+								'default'     => false,
+							),
+							'attributes'  => array(
+								'description' => __( 'The initial values for attributes.' ),
+								'type'        => 'object',
+							),
+							'innerBlocks' => $inner_blocks_definition,
+							'example'     => $example_definition,
+							'scope'       => array(
+								'description' => __( 'The list of scopes where the variation is applicable. When not provided, it assumes all available scopes.' ),
+								'type'        => array( 'array', 'null' ),
+								'default'     => null,
+								'items'       => array(
+									'type' => 'string',
+									'enum' => array( 'block', 'inserter', 'transform' ),
+								),
+								'readonly'    => true,
+							),
+							'keywords'    => $keywords_definition,
+						),
+					),
+					'readonly'    => true,
+					'context'     => array( 'embed', 'view', 'edit' ),
+					'default'     => null,
+				),
 				'textdomain'       => array(
 					'description' => __( 'Public text domain.' ),
 					'type'        => array( 'string', 'null' ),
@@ -529,50 +635,8 @@ public function get_item_schema() {
 					'context'     => array( 'embed', 'view', 'edit' ),
 					'readonly'    => true,
 				),
-				'keywords'         => array(
-					'description' => __( 'Block keywords.' ),
-					'type'        => 'array',
-					'items'       => array(
-						'type' => 'string',
-					),
-					'default'     => array(),
-					'context'     => array( 'embed', 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'example'          => array(
-					'description' => __( 'Block example.' ),
-					'type'        => array( 'object', 'null' ),
-					'default'     => null,
-					'properties'  => array(
-						'attributes'  => array(
-							'description' => __( 'The attributes used in the example.' ),
-							'type'        => 'object',
-						),
-						'innerBlocks' => array(
-							'description' => __( 'The list of inner blocks used in the example.' ),
-							'type'        => 'array',
-							'items'       => array(
-								'type'       => 'object',
-								'properties' => array(
-									'name'        => array(
-										'description' => __( 'The name of the inner block.' ),
-										'type'        => 'string',
-									),
-									'attributes'  => array(
-										'description' => __( 'The attributes of the inner block.' ),
-										'type'        => 'object',
-									),
-									'innerBlocks' => array(
-										'description' => __( "A list of the inner block's own inner blocks. This is a recursive definition following the parent innerBlocks schema." ),
-										'type'        => 'array',
-									),
-								),
-							),
-						),
-					),
-					'context'     => array( 'embed', 'view', 'edit' ),
-					'readonly'    => true,
-				),
+				'keywords'         => $keywords_definition,
+				'example'          => $example_definition,
 			),
 		);
 
diff --git a/src/wp-includes/taxonomy.php b/src/wp-includes/taxonomy.php
index c8633d8ea27f3..3961fceecd79c 100644
--- a/src/wp-includes/taxonomy.php
+++ b/src/wp-includes/taxonomy.php
@@ -576,6 +576,10 @@ function unregister_taxonomy( $taxonomy ) {
  *     @type string $items_list                 Label for the table hidden heading.
  *     @type string $most_used                  Title for the Most Used tab. Default 'Most Used'.
  *     @type string $back_to_items              Label displayed after a term has been updated.
+ *     @type string $item_link                  Used in the block editor. Title for a navigation link block variation.
+ *                                              Default 'Tag Link'/'Category Link'.
+ *     @type string $item_link_description      Used in the block editor. Description for a navigation link block
+ *                                              variation. Default 'A link to a tag.'/'A link to a category'.
  * }
  */
 function get_taxonomy_labels( $tax ) {
@@ -613,6 +617,14 @@ function get_taxonomy_labels( $tax ) {
 		/* translators: Tab heading when selecting from the most used terms. */
 		'most_used'                  => array( _x( 'Most Used', 'tags' ), _x( 'Most Used', 'categories' ) ),
 		'back_to_items'              => array( __( '← Go to Tags' ), __( '← Go to Categories' ) ),
+		'item_link'                  => array(
+			_x( 'Tag Link', 'navigation link block title' ),
+			_x( 'Category Link', 'navigation link block description' ),
+		),
+		'item_link_description'      => array(
+			_x( 'A link to a tag.', 'navigation link block description' ),
+			_x( 'A link to a category.', 'navigation link block description' ),
+		),
 	);
 	$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
 
diff --git a/tests/phpunit/tests/admin/includesPost.php b/tests/phpunit/tests/admin/includesPost.php
index 4dffffd0d0ac3..915f1fbd04bdb 100644
--- a/tests/phpunit/tests/admin/includesPost.php
+++ b/tests/phpunit/tests/admin/includesPost.php
@@ -847,6 +847,7 @@ function test_get_block_editor_server_block_settings() {
 				'category'    => 'common',
 				'styles'      => array(),
 				'keywords'    => array(),
+				'variations'  => array(),
 			),
 			$blocks[ $name ]
 		);
diff --git a/tests/phpunit/tests/rest-api/rest-block-type-controller.php b/tests/phpunit/tests/rest-api/rest-block-type-controller.php
index 7bd1712f948c7..3958c9bd1978b 100644
--- a/tests/phpunit/tests/rest-api/rest-block-type-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-block-type-controller.php
@@ -224,6 +224,7 @@ public function test_get_item_invalid() {
 			'styles'           => 'invalid_styles',
 			'render_callback'  => 'invalid_callback',
 			'textdomain'       => true,
+			'variations'       => 'invalid_variations',
 		);
 		register_block_type( $block_type, $settings );
 		wp_set_current_user( self::$admin_id );
@@ -249,6 +250,7 @@ public function test_get_item_invalid() {
 		$this->assertNull( $data['category'] );
 		$this->assertNull( $data['textdomain'] );
 		$this->assertFalse( $data['is_dynamic'] );
+		$this->assertSameSets( array( array() ), $data['variations'] );
 	}
 
 	/**
@@ -275,6 +277,7 @@ public function test_get_item_defaults() {
 			'render_callback'  => false,
 			'textdomain'       => false,
 			'example'          => false,
+			'variations'       => false,
 		);
 		register_block_type( $block_type, $settings );
 		wp_set_current_user( self::$admin_id );
@@ -301,6 +304,65 @@ public function test_get_item_defaults() {
 		$this->assertNull( $data['example'] );
 		$this->assertNull( $data['textdomain'] );
 		$this->assertFalse( $data['is_dynamic'] );
+		$this->assertSameSets( array(), $data['variations'] );
+	}
+
+	public function test_get_variation() {
+		$block_type = 'fake/variations';
+		$settings   = array(
+			'title'       => 'variations block test',
+			'description' => 'a variations block test',
+			'attributes'  => array( 'kind' => array( 'type' => 'string' ) ),
+			'variations'  => array(
+				array(
+					'name'        => 'variation',
+					'title'       => 'variation title',
+					'description' => 'variation description',
+					'category'    => 'media',
+					'icon'        => 'checkmark',
+					'attributes'  => array( 'kind' => 'foo' ),
+					'isDefault'   => true,
+					'example'     => array( 'attributes' => array( 'kind' => 'example' ) ),
+					'scope'       => array( 'inserter', 'block' ),
+					'keywords'    => array( 'dogs', 'cats', 'mice' ),
+					'innerBlocks' => array(
+						array(
+							'name'       => 'fake/bar',
+							'attributes' => array( 'label' => 'hi' ),
+						),
+					),
+				),
+			),
+		);
+		register_block_type( $block_type, $settings );
+		wp_set_current_user( self::$admin_id );
+		$request  = new WP_REST_Request( 'GET', '/wp/v2/block-types/' . $block_type );
+		$response = rest_get_server()->dispatch( $request );
+		$data     = $response->get_data();
+		$this->assertSame( $block_type, $data['name'] );
+		$this->assertArrayHasKey( 'variations', $data );
+		$this->assertSame( 1, count( $data['variations'] ) );
+		$variation = $data['variations'][0];
+		$this->assertSame( 'variation title', $variation['title'] );
+		$this->assertSame( 'variation description', $variation['description'] );
+		$this->assertSame( 'media', $variation['category'] );
+		$this->assertSame( 'checkmark', $variation['icon'] );
+		$this->assertSameSets( array( 'inserter', 'block' ), $variation['scope'] );
+		$this->assertSameSets( array( 'dogs', 'cats', 'mice' ), $variation['keywords'] );
+		$this->assertSameSets( array( 'attributes' => array( 'kind' => 'example' ) ), $variation['example'] );
+		$this->assertSameSets(
+			array(
+				array(
+					'name'       => 'fake/bar',
+					'attributes' => array( 'label' => 'hi' ),
+				),
+			),
+			$variation['innerBlocks']
+		);
+		$this->assertSameSets(
+			array( 'kind' => 'foo' ),
+			$variation['attributes']
+		);
 	}
 
 	/**
@@ -312,7 +374,7 @@ public function test_get_item_schema() {
 		$response   = rest_get_server()->dispatch( $request );
 		$data       = $response->get_data();
 		$properties = $data['schema']['properties'];
-		$this->assertCount( 20, $properties );
+		$this->assertCount( 21, $properties );
 		$this->assertArrayHasKey( 'api_version', $properties );
 		$this->assertArrayHasKey( 'title', $properties );
 		$this->assertArrayHasKey( 'icon', $properties );
@@ -333,6 +395,7 @@ public function test_get_item_schema() {
 		$this->assertArrayHasKey( 'example', $properties );
 		$this->assertArrayHasKey( 'uses_context', $properties );
 		$this->assertArrayHasKey( 'provides_context', $properties );
+		$this->assertArrayHasKey( 'variations', $properties );
 	}
 
 	/**