Penneshaw is a township in the Australian state of South Australia located on the northeast coast of the Dudley Peninsula on Kangaroo Island about 107 kilometres (66 mi) south of the state capital of Adelaide. It is the island's main ferry port with regular services from Cape Jervis. Penneshaw features a Maritime and Folk Museum, and evening tours to a colony of little penguin, the only species of penguin to breed in Australian waters. At the 2011 census, Penneshaw had a population of 276.