Kossaki Nadbielne [kɔsˈsaki nadˈbjɛlnɛ] is a village in the administrative district of Gmina Rutki, within Zambrów County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 7 kilometres (4 mi) north-west of Rutki-Kossaki, 17 km (11 mi) north-east of Zambrów, and 55 km (34 mi) west of the regional capital Białystok.