Tantanoola is a town in regional South Australia. The name is derived from the aboriginal word tentunola, which means boxwood / brushwood hill or camp. Tantanoola was originally named 'Lucieton' by Governor Jervois after his daughter Lucy Caroline, on 10 July 1879. It was changed by Governor Robinson to 'Tantanoola' on 4 October 1888. At the 2006 census, Tantanoola had a population of 255.

Millicent is a town in the Australian state of South Australia located about 399 kilometres (248 mi) south-east of the state capital of Adelaide and about 50 kilometres (31 mi) north of the regional centre of Mount Gambier. In the 2011 census, the population was 5,024.