diff --git a/plugins/woocommerce/changelog/fix-50891 b/plugins/woocommerce/changelog/fix-50891
new file mode 100644
index 00000000000..33cc44e00b0
--- /dev/null
+++ b/plugins/woocommerce/changelog/fix-50891
@@ -0,0 +1,4 @@
+Significance: patch
+Type: enhancement
+
+Add filter for response of `wc_rest_should_load_namespace` function to allow loading namespaces.
diff --git a/plugins/woocommerce/includes/wc-rest-functions.php b/plugins/woocommerce/includes/wc-rest-functions.php
index 3eeec672a27..e9b3055cc9f 100644
--- a/plugins/woocommerce/includes/wc-rest-functions.php
+++ b/plugins/woocommerce/includes/wc-rest-functions.php
@@ -410,8 +410,6 @@ function wc_rest_should_load_namespace( string $ns, string $rest_route = '' ): b
 		'wc/private',
 	);
 
-	// We can consider allowing filtering this list in the future.
-
 	$known_namespace_request = false;
 	foreach ( $known_namespaces as $known_namespace ) {
 		if ( str_starts_with( $rest_route, $known_namespace ) ) {
@@ -424,5 +422,15 @@ function wc_rest_should_load_namespace( string $ns, string $rest_route = '' ): b
 		return true;
 	}
 
-	return str_starts_with( $rest_route, $ns );
+	/**
+	 * Filters whether a namespace should be loaded.
+	 *
+	 * @param bool   $should_load True if the namespace should be loaded, false otherwise.
+	 * @param string $ns          The namespace to check.
+	 * @param string $rest_route  The REST route being checked.
+	 * @param array  $known_namespaces Known namespaces that we know are safe to not load if the request is not for them.
+	 *
+	 * @since 9.4
+	 */
+	return apply_filters( 'wc_rest_should_load_namespace', str_starts_with( $rest_route, $ns ), $ns, $rest_route, $known_namespaces );
 }
diff --git a/plugins/woocommerce/tests/php/includes/wc-rest-functions-test.php b/plugins/woocommerce/tests/php/includes/wc-rest-functions-test.php
index d5938d7fbcb..41d2dd8dfc4 100644
--- a/plugins/woocommerce/tests/php/includes/wc-rest-functions-test.php
+++ b/plugins/woocommerce/tests/php/includes/wc-rest-functions-test.php
@@ -27,4 +27,22 @@ class WCRestFunctionsTest extends WC_Unit_Test_Case {
 		$this->assertFalse( wc_rest_should_load_namespace( 'wc-analytics', 'wc/v2' ) );
 		$this->assertTrue( wc_rest_should_load_namespace( 'wc/v2', 'wc/v2' ) );
 	}
+
+	/**
+	 * @testDox Test wc_rest_should_load_namespace known works with preload.
+	 */
+	public function test_wc_rest_should_load_namespace_known_works_with_preload() {
+		$memo = rest_preload_api_request( array(), '/wc/store/v1/cart' );
+		$this->assertArrayHasKey( '/wc/store/v1/cart', $memo );
+	}
+
+	/**
+	 * @testDox Test wc_rest_should_load_namespace filter.
+	 */
+	public function test_wc_rest_should_load_namespace_filter() {
+		$this->assertFalse( wc_rest_should_load_namespace( 'wc/v1', 'wc/v2' ) );
+		add_filter( 'wc_rest_should_load_namespace', '__return_true' );
+		$this->assertTrue( wc_rest_should_load_namespace( 'wc/v1', 'wc/v2' ) );
+		remove_filter( 'wc_rest_should_load_namespace', '__return_true' );
+	}
 }