Sør-Fron is a municipality in Innlandet county, Norway. It is located in the traditional district of Gudbrandsdal. The administrative centre of the municipality is the village of Hundorp. Other villages in the municipality include Gålå, Harpefoss, and Lia.

Fron is a former municipality in the old Oppland county, Norway. The 2,389-square-kilometre (922 sq mi) municipality has existed twice: from 1838-1851 and again from 1966-1977. The municipality was dissolved in 1977 and split up into the present-day municipalities of Nord-Fron and Sør-Fron which are both part of Innlandet county. The administrative centre of Fron was the village of Hundorp where the Sør-Fron Church is located.