Dubiażyn [duˈbʲaʐɨn] is a village in the administrative district of Gmina Bielsk Podlaski, within Bielsk County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 10 kilometres (6 mi) south of Bielsk Podlaski and 49 km (30 mi) south of the regional capital Białystok.