Bagno [ˈbaɡnɔ] is a village in the administrative district of Gmina Jaświły, within Mońki County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 2 kilometres (1 mi) south of Jaświły, 11 km (7 mi) north-east of Mońki, and 41 km (25 mi) north-west of the regional capital Białystok.