Hajnówka ([xai̯ˈnufka]; Belarusian: Гайнаўка, Hajnaŭka) 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 the 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 the town) in Poland.
It is one of five Polish/Belarusian bilingual Gmina in Podlaskie Voivodeship regulated by the Act of 6 January 2005 on National and Ethnic Minorities and on the Regional Languages, which permits certain gminas with significant linguistic minorities to introduce a second, auxiliary language to be used in official contexts alongside Polish.(Wikipedia)