Sörmlandsleden ("Sörmland trail")" is a system of hiking trails covering a total of approximately 1,000 kilometres (620 mi) of walking paths in Södermanland, south of Stockholm, Sweden.

The trails pass through several nature reserves, areas of cultural tradition and several historical monuments.

The trail begins in Björkhagen, Stockholm and passes through several places like Stockholm, Nynäshamn, Södertälje, Trosa, Nyköping, Oxelösund, Katrineholm, Hälleforsnäs and Malmköping.

It also has several branches that go to places like Flen, Eskilstuna, Gnesta and Mariefred.

Along the trails are rest areas, lean-tos, campsites, log cabins and other shelters.