Janowo [jaˈnɔvɔ] is a village in the administrative district of Gmina Radziłów, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 3 kilometres (2 mi) north-west of Radziłów, 25 km (16 mi) south of Grajewo, and 63 km (39 mi) north-west of the regional capital Białystok.