diff --git a/src/wp-includes/kses.php b/src/wp-includes/kses.php
index 46cd2c4576c03..d68021c3a8b30 100644
--- a/src/wp-includes/kses.php
+++ b/src/wp-includes/kses.php
@@ -158,9 +158,10 @@
 			'popover' => true,
 		),
 		'dialog'     => array(
-			'closedby' => true,
-			'open'     => true,
-			'popover'  => true,
+			'closedby'  => true,
+			'open'      => true,
+			'popover'   => true,
+			'autofocus' => true,
 		),
 		'dl'         => array(),
 		'dt'         => array(),
diff --git a/tests/phpunit/tests/kses.php b/tests/phpunit/tests/kses.php
index 1afd7e0884a64..f560d88403524 100644
--- a/tests/phpunit/tests/kses.php
+++ b/tests/phpunit/tests/kses.php
@@ -2183,6 +2183,18 @@ public function test_wp_kses_main_tag_standard_attributes() {
 		$this->assertEqualHTML( $html, wp_kses_post( $html ) );
 	}
 
+	/**
+	 * Tests that the autofocus attribute is allowed on dialog elements and removed from other focusable elements.
+	 *
+	 * @ticket 65491
+	 */
+	public function test_wp_kses_dialog_autofocus_attribute() {
+		$html     = '<dialog open autofocus>Content</dialog><button type="button" autofocus>Button</button><textarea autofocus>Some content</textarea><div tabindex="0" autofocus>Some content</div>';
+		$expected = '<dialog open autofocus>Content</dialog><button type="button">Button</button><textarea>Some content</textarea><div tabindex="0">Some content</div>';
+
+		$this->assertEqualHTML( $expected, wp_kses_post( $html ) );
+	}
+
 	/**
 	 * Test that Invoker Commands API attributes are preserved on buttons in post content.
 	 *