The Yorke Peninsula, known as Guuranda by the original inhabitants, the Narungga people, is a peninsula located northwest and west of Adelaide in South Australia, between Spencer Gulf on the west and Gulf St Vincent on the east. The peninsula is separated from Kangaroo Island to the south by Investigator Strait. The most populous town in the region is Kadina; Maitland is the most central town; and the south-western tip is occupied by Dhilba Guuranda-Innes National Park.