Bø is a settlement in Midt-Telemark Municipality, in Telemark, Norway. Bø lies at 67 m above sea level, at the foot of the Scandinavian mountains. It has 3,968 inhabitants (2025). The nearest city is Kongsberg, 44 km to the northeast. Among the landmarks around are Heddal Stave Church (19.5 km), Old Bø Church (0.8 km) and Bø Church (0.8 km).