Olchówka [ɔlˈxufka] is a village in the administrative district of Gmina Narewka, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 6 kilometres (4 mi) north-east of Narewka, 23 km (14 mi) north-east of Hajnówka, and 53 km (33 mi) south-east of the regional capital Białystok.