Kosmáčov is a village in Klatovy District, in the Plzeň Region, Czechia. Kosmáčov lies at 484 m above sea level, 9.0 km from the Bohemian Forest mountains. The nearest city is Plzeň, 40 km to the north. Among the landmarks around are Švihov Castle (11.9 km), Castle Velhartice (13.5 km) and Rabí Castle (23 km). Among the natural features are Orlovická hora (19.5 km) and Nový Herštejn (21 km).