Sandfloegga or Sandfloeggi is a mountain in Ullensvang Municipality in southeastern Vestland county, Norway. It lies on the southern part of the vast Hardangervidda mountain plateau, and is the highest mountain on Hardangervidda when the bordering summits of Hardangerjøkulen and Folarskardnuten are omitted. The 1,721-metre tall mountain lies inside Hardangervidda National Park, about 10 kilometres north of the European route E134 highway.