Hajnówka ((Ukrainian: Гайнівка, Hainivka) is a town and a powiat seat in north-eastern Poland (Podlaskie Voivodeship) with 21,583 inhabitants (2009). It is the capital of Hajnówka County. The town is also notable for its proximity to the Białowieża Forest, the biggest primaeval forest in Europe. Through Hajnówka flows river Leśna Prawa (be: Лясная Правая). It is one of the centres of Orthodox faith and a notable centre of Belarusian culture (26,41% in town)[citation needed] in Poland. However, most Slavists place Hajnówka on the Ukrainian side of the Belarusian-Ukrainian linguistic border.