Pątnowo [pɔntˈnɔvɔ] is a village in the administrative district of Gmina Sławno, within Sławno County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 8 kilometres (5 mi) north-west of Sławno and 171 km (106 mi) north-east of the regional capital Szczecin.

For the history of the region, see History of Pomerania.