Minlaton is a town in central Yorke Peninsula, South Australia. At the 2006 census, Minlaton had a population of 773. It is known as the "Barley capital of the world", due to the rich Barley production in the region. Minlaton was the home town of Harry Butler, a World War I flying ace. His Bristol M1C monoplane has been restored and is preserved in pride of place in a building the centre of the town. When he flew an air mail run from Adelaide across Gulf St Vincent to Minlaton in 1919, it was the first over-water flight in the Southern Hemisphere.