Karlov is a village in Semily District, in the Liberec Region, Czechia. Karlov lies 5.6 km from the Giant mountains. The nearest city is Jablonec nad Nisou, 26 km to the northwest. Among the landmarks around are Trosky Castle (9.5 km), Kost Castle (16.7 km) and Valdštejn Castle (14.5 km). Among the natural features are Zebín (8.2 km) and Staropacká hora (10.5 km).