Grudza
 Grudza [ˈɡrud͡za] (German: Birngrütz) is a village in the administrative district of Gmina Mirsk within Lwówek Śląski County Lower Silesian Voivodeship in south-western Poland close to the Czech border. Prior to 1945 it was in Germany.It lies approximately 10 kilometres (6 mi) east of Mirsk 20 kilometres (12 mi) south of Lwówek Śląski and 110 kilometres (68 mi) west of the regional capital Wrocław.