Kromnów [ˈkrɔmnuf] is a village in the administrative district of Gmina Brochów, within Sochaczew County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) north-east of Brochów, 18 km (11 mi) north of Sochaczew, and 49 km (30 mi) west of Warsaw.