Piotrowszczyzna [pjɔtrɔfʂˈt͡ʂɨzna] is a village in the administrative district of Gmina Kleszczele, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 9 kilometres (6 mi) west of Kleszczele, 31 km (19 mi) south-west of Hajnówka, and 62 km (39 mi) south of the regional capital Białystok.