Sør-Tverrfjord is a village in Loppa Municipality in Finnmark county, Norway.

The village is located on the mainland of Loppa, along the Langfjorden, south of the island of Silda.

The isolated village of Langfjordhamn lies about 10 kilometres (6.2 mi) to the southeast at the end of the fjord, accessible only by boat.

The Langfjordjøkelen glacier lies about 8 kilometres (5.0 mi) south of Sør-Tverrfjord.

This article about a location in Finnmark is a stub.