Brattåker is a village in Hol Municipality, in Buskerud, Norway. Brattåker lies at 1,022 m above sea level, at the foot of the Hallingskarvet mountains. The nearest city is Lillehammer, 133 km to the east. Among the landmarks around are Hol Church (7.4 km), Torpo Stave Church (26 km) and Hol old Church (4.2 km). Among the natural features are Skarvsenden (12.9 km) and Hivjufossen (9.1 km).