diff --git a/wp-includes/block-supports/aria-label.php b/wp-includes/block-supports/aria-label.php
new file mode 100644
index 0000000000..aa559bcacd
--- /dev/null
+++ b/wp-includes/block-supports/aria-label.php
@@ -0,0 +1,70 @@
+<?php
+/**
+ * Aria label block support flag.
+ *
+ * @package WordPress
+ * @since 6.8.0
+ */
+
+/**
+ * Registers the aria-label block attribute for block types that support it.
+ *
+ * @since 6.8.0
+ * @access private
+ *
+ * @param WP_Block_Type $block_type Block Type.
+ */
+function wp_register_aria_label_support( $block_type ) {
+	$has_aria_label_support = block_has_support( $block_type, array( 'ariaLabel' ), false );
+
+	if ( ! $has_aria_label_support ) {
+		return;
+	}
+
+	if ( ! $block_type->attributes ) {
+		$block_type->attributes = array();
+	}
+
+	if ( ! array_key_exists( 'ariaLabel', $block_type->attributes ) ) {
+		$block_type->attributes['ariaLabel'] = array(
+			'type' => 'string',
+		);
+	}
+}
+
+/**
+ * Add the aria-label to the output.
+ *
+ * @since 6.8.0
+ * @access private
+ *
+ * @param WP_Block_Type $block_type       Block Type.
+ * @param array         $block_attributes Block attributes.
+ *
+ * @return array Block aria-label.
+ */
+function wp_apply_aria_label_support( $block_type, $block_attributes ) {
+	if ( ! $block_attributes ) {
+		return array();
+	}
+
+	$has_aria_label_support = block_has_support( $block_type, array( 'ariaLabel' ), false );
+	if ( ! $has_aria_label_support ) {
+		return array();
+	}
+
+	$has_aria_label = array_key_exists( 'ariaLabel', $block_attributes );
+	if ( ! $has_aria_label ) {
+		return array();
+	}
+	return array( 'aria-label' => $block_attributes['ariaLabel'] );
+}
+
+// Register the block support.
+WP_Block_Supports::get_instance()->register(
+	'aria-label',
+	array(
+		'register_attribute' => 'wp_register_aria_label_support',
+		'apply'              => 'wp_apply_aria_label_support',
+	)
+);
diff --git a/wp-includes/class-wp-block-supports.php b/wp-includes/class-wp-block-supports.php
index 71d6b49691..ec5bc9c8d6 100644
--- a/wp-includes/class-wp-block-supports.php
+++ b/wp-includes/class-wp-block-supports.php
@@ -181,7 +181,7 @@ function get_block_wrapper_attributes( $extra_attributes = array() ) {
 
 	// This is hardcoded on purpose.
 	// We only support a fixed list of attributes.
-	$attributes_to_merge = array( 'style', 'class', 'id' );
+	$attributes_to_merge = array( 'style', 'class', 'id', 'aria-label' );
 	$attributes          = array();
 	foreach ( $attributes_to_merge as $attribute_name ) {
 		if ( empty( $new_attributes[ $attribute_name ] ) && empty( $extra_attributes[ $attribute_name ] ) ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 42a917a33f..a0043a8738 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.8-alpha-59924';
+$wp_version = '6.8-alpha-59925';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-settings.php b/wp-settings.php
index 8f835bc31b..f5a0929db8 100644
--- a/wp-settings.php
+++ b/wp-settings.php
@@ -387,6 +387,7 @@ require ABSPATH . WPINC . '/block-supports/duotone.php';
 require ABSPATH . WPINC . '/block-supports/shadow.php';
 require ABSPATH . WPINC . '/block-supports/background.php';
 require ABSPATH . WPINC . '/block-supports/block-style-variations.php';
+require ABSPATH . WPINC . '/block-supports/aria-label.php';
 require ABSPATH . WPINC . '/style-engine.php';
 require ABSPATH . WPINC . '/style-engine/class-wp-style-engine.php';
 require ABSPATH . WPINC . '/style-engine/class-wp-style-engine-css-declarations.php';