Porosłe [pɔˈrɔswɛ] 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 7 kilometres (4 mi) north-east of Narewka, 24 km (15 mi) north-east of Hajnówka, and 50 km (31 mi) south-east of the regional capital Białystok.