Kolonia Księżyno [kɔˈlɔɲa kɕɛ̃ˈʐɨnɔ] is a village in the administrative district of Gmina Juchnowiec Kościelny, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 7 kilometres (4 mi) north of Juchnowiec Kościelny and 6 km (4 mi) south-west of the regional capital Białystok.