Luka is a village in Česká Lípa District, in the Liberec Region, Czechia. Luka lies at 330 m above sea level. It has 98 inhabitants (2024). The nearest city is Mladá Boleslav, 21 km to the east. Among the landmarks around are Bezděz Castle (5.0 km), Kokořín Castle (10.1 km) and Houska Castle (3.7 km). Among the natural features are Velká Buková (11.1 km) and Radouč (18.7 km).