Peron Peninsula (Malgana: Wulybidi)[1][full citation needed] is a long narrow peninsula located in the Shark Bay World Heritage site in Western Australia, at about 25°51′S 113°30′E / 25.850°S 113.500°E. It is some 130 kilometres (81 mi) long, running north-northwesterly, located east of Henri Freycinet Harbour and west of Havre Hamelin and Faure Island. It is the largest of the Shark Bay peninsulas. Significant settlements include Denham and Monkey Mia. Shark Bay Airport is located there. It is the location of former Pastoral leases Peron and Nanga stations, and is the main location of land access to points within the World Heritage site. The northern area contains the Francois Peron National Park. It is surrounded by the Shark Bay Marine Park and its lower southeast part is adjacent to the Hamelin Pool Marine Nature Reserve.
The Taillefer Isthmus, the narrowest section of the peninsula, is between Nanga and Goulet Bluff – which has Shell Beach located on the eastern side which lies in the L'Haridon Bight.
The northernmost point is Cape Peron, which is a namesake of Cape Peron in the metropolitan Perth coastal area.