Barwiki [barˈviki] is a village in the administrative district of Gmina Radziłów, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) south-east of Radziłów, 30 km (19 mi) south of Grajewo, and 58 km (36 mi) north-west of the regional capital Białystok.