Usnarszczyzna [usnarʂˈt͡ʂɨzna] is a village in the administrative district of Gmina Narew, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 9 kilometres (6 mi) south of Narew, 12 km (7 mi) north of Hajnówka, and 40 km (25 mi) south-east of the regional capital Białystok.