Wielbark is a town in Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It is the seat of the gmina called Gmina Wielbark. It …Wielbark is a town in Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It is the seat of the gmina called Gmina Wielbark. It lies approximately 19 kilometres south of Szczytno and 52 km south-east of the regional capital Olsztyn. It is part of historic Masuria.