Ask is a village in Ringerike Municipality, in Buskerud, Norway. Ask lies at 75 m above sea level, 5.3 km from the Holleia mountains. The nearest city is Oslo, 33 km to the east. Among the landmarks around are Blaafarveværket (29 km), Royal Palace (40 km) and Akershus Fortress (41 km). Among the natural features are Hønefossen (6.1 km) and Krokskogen (17.7 km).