Søndre Folgefonna () is the third largest glacier in mainland Norway, and is the largest of the three glaciers constituting Folgefonna. The glacier is located at the base of the Folgefonna peninsula in Vestland county in the border of the municipalities of Ullensvang, Etne, and Kvinnherad.
Søndre Folgefonna, a glacier located on the mainland of Norway, is the third largest glacier in the country and the largest of three glaciers that make up Folgefonna. It lies at the base of the Folgefonna peninsula, which borders the municipalities of Ullensvang, Etne, and Kvinnherad in Vestland county.