Tungkillo (34°49′S 139°04′E / 34.817°S 139.067°E, postcode 5236, altitude 299m) is a town in South Australia, located approximately 5 km (3.1 mi) south of Mount Pleasant. It sits on Adelaide-Mannum Road, 60 km (37 mi) north-east of the state capital, Adelaide and 25 km (16 mi) north-west of Mannum. At the 2006 census, Tungkillo had a population of 360. Tungkillo is a corruption of tainkila, a Peramangk Aboriginal word meaning ghost moth grubs. The historic former in Hoads Woolshed Road and a former grain threshing floor in Loxton Road are listed on the South Australian Heritage Register.