Porthleven (/ˌpɔːrθˈlɛvən/) is a town, civil parish and fishing port close Helston in Cornwall, England. As the most southerly port on the island of Great Britain, it was originally developed as a harbour of refuge, when this share of the Cornish coastline was a black spot for wrecks in the days of sail. The South West Coast Path, which follows the coast from Somerset to Dorset passes through the town. An electoral ward called Porthleven and Helston South as well as exists. The population at the 2011 census was 3,059.