Mosznica [mɔʂˈnit͡sa] 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 51 km (32 mi) south-west of the regional capital Olsztyn.