Karlovice is a village in Semily District, in the Liberec Region, Czechia. Karlovice lies at 284 m above sea level, 2.9 km from the Giant mountains. It has 895 inhabitants (2024). The nearest city is Jablonec nad Nisou, 18.6 km to the north. Among the landmarks around are Kost Castle (9.5 km), Trosky Castle (5.3 km) and Valdštejn Castle (3.0 km). Among the natural features are Zebín (16.8 km) and Postojna (4.1 km).