Medby is a village in Senja Municipality in Troms county, Norway. It is located along the Veidmannsfjorden on the southwestern part of the island of Senja. The village lies along a highway that connects the villages of Grunnfarnes and Sifjord. The Kaldfarnes area lies just to the west of Medby and Ånderdalen National Park lies about 5 kilometres (3.1 mi) to the east of the village. Medby Chapel is located in this village.