Flinders is an electoral district of the House of Assembly in the Australian state of South Australia. It is named after explorer Matthew Flinders, who was responsible for charting most of the state's coastline. It is a 61,139 km² coastal rural electorate encompassing the Eyre Peninsula and the coast along the Nullarbor Plain, based in and around the towns of Port Lincoln and Ceduna. The seat was expanded in 2002 to include a western strip of land all the way to the Western Australia border.