diff --git a/wp-includes/block-supports/typography.php b/wp-includes/block-supports/typography.php
index 6e7e093931..066efba6b1 100644
--- a/wp-includes/block-supports/typography.php
+++ b/wp-includes/block-supports/typography.php
@@ -31,6 +31,7 @@ function wp_register_typography_support( $block_type ) {
 	$has_font_weight_support     = isset( $typography_supports['__experimentalFontWeight'] ) ? $typography_supports['__experimentalFontWeight'] : false;
 	$has_letter_spacing_support  = isset( $typography_supports['__experimentalLetterSpacing'] ) ? $typography_supports['__experimentalLetterSpacing'] : false;
 	$has_line_height_support     = isset( $typography_supports['lineHeight'] ) ? $typography_supports['lineHeight'] : false;
+	$has_text_align_support      = isset( $typography_supports['textAlign'] ) ? $typography_supports['textAlign'] : false;
 	$has_text_columns_support    = isset( $typography_supports['textColumns'] ) ? $typography_supports['textColumns'] : false;
 	$has_text_decoration_support = isset( $typography_supports['__experimentalTextDecoration'] ) ? $typography_supports['__experimentalTextDecoration'] : false;
 	$has_text_transform_support  = isset( $typography_supports['__experimentalTextTransform'] ) ? $typography_supports['__experimentalTextTransform'] : false;
@@ -42,6 +43,7 @@ function wp_register_typography_support( $block_type ) {
 		|| $has_font_weight_support
 		|| $has_letter_spacing_support
 		|| $has_line_height_support
+		|| $has_text_align_support
 		|| $has_text_columns_support
 		|| $has_text_decoration_support
 		|| $has_text_transform_support
@@ -106,6 +108,7 @@ function wp_apply_typography_support( $block_type, $block_attributes ) {
 	$has_font_weight_support     = isset( $typography_supports['__experimentalFontWeight'] ) ? $typography_supports['__experimentalFontWeight'] : false;
 	$has_letter_spacing_support  = isset( $typography_supports['__experimentalLetterSpacing'] ) ? $typography_supports['__experimentalLetterSpacing'] : false;
 	$has_line_height_support     = isset( $typography_supports['lineHeight'] ) ? $typography_supports['lineHeight'] : false;
+	$has_text_align_support      = isset( $typography_supports['textAlign'] ) ? $typography_supports['textAlign'] : false;
 	$has_text_columns_support    = isset( $typography_supports['textColumns'] ) ? $typography_supports['textColumns'] : false;
 	$has_text_decoration_support = isset( $typography_supports['__experimentalTextDecoration'] ) ? $typography_supports['__experimentalTextDecoration'] : false;
 	$has_text_transform_support  = isset( $typography_supports['__experimentalTextTransform'] ) ? $typography_supports['__experimentalTextTransform'] : false;
@@ -117,6 +120,7 @@ function wp_apply_typography_support( $block_type, $block_attributes ) {
 	$should_skip_font_style      = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'fontStyle' );
 	$should_skip_font_weight     = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'fontWeight' );
 	$should_skip_line_height     = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'lineHeight' );
+	$should_skip_text_align      = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'textAlign' );
 	$should_skip_text_columns    = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'textColumns' );
 	$should_skip_text_decoration = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'textDecoration' );
 	$should_skip_text_transform  = wp_should_skip_block_supports_serialization( $block_type, 'typography', 'textTransform' );
@@ -176,6 +180,12 @@ function wp_apply_typography_support( $block_type, $block_attributes ) {
 			: null;
 	}
 
+	if ( $has_text_align_support && ! $should_skip_text_align ) {
+		$typography_block_styles['textAlign'] = isset( $block_attributes['style']['typography']['textAlign'] )
+			? $block_attributes['style']['typography']['textAlign']
+			: null;
+	}
+
 	if ( $has_text_columns_support && ! $should_skip_text_columns && isset( $block_attributes['style']['typography']['textColumns'] ) ) {
 		$typography_block_styles['textColumns'] = isset( $block_attributes['style']['typography']['textColumns'] )
 			? $block_attributes['style']['typography']['textColumns']
@@ -225,13 +235,22 @@ function wp_apply_typography_support( $block_type, $block_attributes ) {
 	}
 
 	$attributes = array();
+	$classnames = array();
 	$styles     = wp_style_engine_get_styles(
 		array( 'typography' => $typography_block_styles ),
 		array( 'convert_vars_to_classnames' => true )
 	);
 
 	if ( ! empty( $styles['classnames'] ) ) {
-		$attributes['class'] = $styles['classnames'];
+		$classnames[] = $styles['classnames'];
+	}
+
+	if ( $has_text_align_support && ! $should_skip_text_align && isset( $block_attributes['style']['typography']['textAlign'] ) ) {
+		$classnames[] = 'has-text-align-' . $block_attributes['style']['typography']['textAlign'];
+	}
+
+	if ( ! empty( $classnames ) ) {
+		$attributes['class'] = implode( ' ', $classnames );
 	}
 
 	if ( ! empty( $styles['css'] ) ) {
diff --git a/wp-includes/class-wp-theme-json.php b/wp-includes/class-wp-theme-json.php
index 4da9580271..9aa2b97b8b 100644
--- a/wp-includes/class-wp-theme-json.php
+++ b/wp-includes/class-wp-theme-json.php
@@ -256,6 +256,7 @@ class WP_Theme_JSON {
 		'border-left-width'                 => array( 'border', 'left', 'width' ),
 		'border-left-style'                 => array( 'border', 'left', 'style' ),
 		'color'                             => array( 'color', 'text' ),
+		'text-align'                        => array( 'typography', 'textAlign' ),
 		'column-count'                      => array( 'typography', 'textColumns' ),
 		'font-family'                       => array( 'typography', 'fontFamily' ),
 		'font-size'                         => array( 'typography', 'fontSize' ),
@@ -454,6 +455,7 @@ class WP_Theme_JSON {
 			'fontWeight'     => null,
 			'letterSpacing'  => null,
 			'lineHeight'     => null,
+			'textAlign'      => null,
 			'textColumns'    => null,
 			'textDecoration' => null,
 			'textTransform'  => null,
@@ -558,6 +560,7 @@ class WP_Theme_JSON {
 			'fontWeight'     => null,
 			'letterSpacing'  => null,
 			'lineHeight'     => null,
+			'textAlign'      => null,
 			'textColumns'    => null,
 			'textDecoration' => null,
 			'textTransform'  => null,
diff --git a/wp-includes/theme.json b/wp-includes/theme.json
index 47aea2d24b..485d01247d 100644
--- a/wp-includes/theme.json
+++ b/wp-includes/theme.json
@@ -303,6 +303,7 @@
 			"fontWeight": true,
 			"letterSpacing": true,
 			"lineHeight": false,
+			"textAlign": true,
 			"textDecoration": true,
 			"textTransform": true,
 			"writingMode": false
diff --git a/wp-includes/version.php b/wp-includes/version.php
index be12ad8058..794fd63e6a 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58313';
+$wp_version = '6.6-alpha-58314';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.