Brenná is a village in Česká Lípa District, in the Liberec Region, Czechia. Brenná lies at 296 m above sea level, 12.6 km from the Sudetes mountains. The nearest city is Česká Lípa, 7.9 km to the west. Among the landmarks around are Bezděz Castle (14.2 km), Lemberk Castle (17.1 km) and Grabštejn (27 km). Among the natural features are Horní Sedlo (23 km) and Panská skála (16.7 km).