Gąsiorowo [ɡɔ̃ɕɔˈrɔvɔ] is a village in the administrative district of Gmina Działdowo, within Działdowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 17 kilometres (11 mi) north of Działdowo and 50 km (31 mi) south-west of the regional capital Olsztyn.

Until 1945 the village was part of Germany, in the province of East Prussia.