Borek [ˈbɔrɛk] is a village in the administrative district of Gmina Hajnówka, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 4 kilometres (2 mi) south-west of Hajnówka and 51 km (32 mi) south-east of the regional capital Białystok.