Itter Castle (German: Schloss Itter) is a small castle standing on a low knoll in Itter, a town in North Tyrol (Austria), 20 km west of Kitzbühel and 5 km south of Worgl. During World War II it was turned into a Nazi prison for French VIP's, and was the site of an extraordinary instance of the U.S. Army, German Wehrmacht, Austrian Resistance, and the prisoners themselves fighting side-by-side against the Waffen SS in the Battle for Castle Itter.