Hornówek [xɔrˈnuvɛk] is a village in the administrative district of Gmina Izabelin, within Warsaw West County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) south-west of Izabelin, 8 km (5 mi) north of Ożarów Mazowiecki, and 16 km (10 mi) north-west of Warsaw.