Prusinowo [pruɕiˈnɔvɔ] is a village in the administrative district of Gmina Działdowo, within Działdowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-west of Działdowo and 70 km (43 mi) south of the regional capital Olsztyn.