diff --git a/src/wp-includes/class-wp-query.php b/src/wp-includes/class-wp-query.php
index 2c9502035705c..31d1769405c1b 100644
--- a/src/wp-includes/class-wp-query.php
+++ b/src/wp-includes/class-wp-query.php
@@ -1440,6 +1440,26 @@ protected function parse_search( &$query_vars ) {
 		if ( empty( $_GET['s'] ) && $this->is_main_query() ) {
 			$query_vars['s'] = urldecode( $query_vars['s'] );
 		}
+		// Admin post titles are texturized before display, so copied smart quotes should still match stored titles.
+		$query_vars['s'] = strtr(
+			$query_vars['s'],
+			array(
+				"\u{00A0}" => ' ',
+				"\u{202F}" => ' ',
+				"\u{00AB}" => '"',
+				"\u{00BB}" => '"',
+				"\u{2018}" => "'",
+				"\u{2019}" => "'",
+				"\u{201A}" => "'",
+				"\u{201B}" => "'",
+				"\u{201C}" => '"',
+				"\u{201D}" => '"',
+				"\u{201E}" => '"',
+				"\u{201F}" => '"',
+				"\u{2039}" => "'",
+				"\u{203A}" => "'",
+			)
+		);
 		// There are no line breaks in <input /> fields.
 		$query_vars['s']                  = str_replace( array( "\r", "\n" ), '', $query_vars['s'] );
 		$query_vars['search_terms_count'] = 1;
diff --git a/tests/phpunit/tests/query/search.php b/tests/phpunit/tests/query/search.php
index 7bfbdec31c87d..c909d9292cc9e 100644
--- a/tests/phpunit/tests/query/search.php
+++ b/tests/phpunit/tests/query/search.php
@@ -32,6 +32,10 @@ private function get_search_results( $terms ) {
 		return $this->q->query( $args );
 	}
 
+	private function get_texturized_search_term( $title ) {
+		return html_entity_decode( wptexturize( $title ), ENT_QUOTES, 'UTF-8' );
+	}
+
 	public function test_search_order_title_relevance() {
 		foreach ( range( 1, 7 ) as $i ) {
 			self::factory()->post->create(
@@ -52,6 +56,38 @@ public function test_search_order_title_relevance() {
 		$this->assertSame( $post_id, reset( $posts )->ID );
 	}
 
+	/**
+	 * @ticket 63209
+	 */
+	public function test_search_should_match_texturized_double_quotes() {
+		$post_id = self::factory()->post->create(
+			array(
+				'post_title' => '"New" a good post',
+				'post_type'  => $this->post_type,
+			)
+		);
+
+		$posts = $this->get_search_results( $this->get_texturized_search_term( '"New" a good post' ) );
+
+		$this->assertSame( array( $post_id ), wp_list_pluck( $posts, 'ID' ) );
+	}
+
+	/**
+	 * @ticket 63209
+	 */
+	public function test_search_should_match_texturized_apostrophes() {
+		$post_id = self::factory()->post->create(
+			array(
+				'post_title' => "Today's post",
+				'post_type'  => $this->post_type,
+			)
+		);
+
+		$posts = $this->get_search_results( $this->get_texturized_search_term( "Today's post" ) );
+
+		$this->assertSame( array( $post_id ), wp_list_pluck( $posts, 'ID' ) );
+	}
+
 	public function test_search_terms_query_var() {
 		$terms = 'This is a search term';
 		$query = new WP_Query( array( 's' => 'This is a search term' ) );