Tarlee is a town in South Australia. The origin of the name is uncertain, but it is thought to be a corruption of the name Tralee in Ireland. The township of Tarlee was advertised as readied for sale by auction in 1867. Tarlee is in the lower Mid North region where Horrocks Highway crosses the Gilbert River. It is approximately 8 km south of Giles Corner, where the Barrier Highway to Broken Hill diverges from the Horrocks Highway through the Clare Valley. At the 2016 census, Tarlee had a population of 302. The Tarlee institute building was opened in 1888.