Sandtorg is a former municipality in Troms county, Norway. The 176.6-square-kilometre (68.2 sq mi) municipality existed from 1926 until its dissolution in 1964. The municipality included the southern part of what is now Harstad Municipality on the eastern coast of the island of Hinnøya as well as some smaller islands in the Vågsfjorden. The administrative centre was actually located in the town of Harstad, immediately north of Sandtorg. Sandtorg Church, the main church for the municipality was in the village of Sørvika.