Białczyn [ˈbjau̯t͡ʂɨn] is a village in the administrative district of Gmina Pieniężno, within Braniewo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 12 kilometres (7 mi) north of Pieniężno, 17 km (11 mi) south-east of Braniewo, and 66 km (41 mi) north-west of the regional capital Olsztyn.