Thebarton ( THEB-ər-tən), formerly Theberton, on Kaurna land, is an inner-western suburb of Adelaide, South Australia in the City of West Torrens. The suburb is bounded by the River Torrens to the north, Port Road and Bonython Park to the east, Kintore Street to the south, and South Road to the west.

Thebarton has a significant Greek-Australian population and is the suburb with the largest Greek Australian population per capita in Australia. In fact, according to census data released by the Australian Bureau of Statistics in 2001, the suburbs of Thebarton and neighbouring Torrensville together are home to 4,471 Greek-Australians; i.e., 18.7 per cent of the total population.