Boleń [ˈbɔlɛɲ] is a settlement in the administrative district of Gmina Zbąszynek, within Świebodzin County, Lubusz Voivodeship, in western Poland. It lies approximately 5 kilometres (3 mi) north-west of Zbąszynek, 17 km (11 mi) east of Świebodzin, 42 km (26 mi) north-east of Zielona Góra, and 63 km (39 mi) south-east of Gorzów Wielkopolski.