The State Theatre Company of South Australia (STCSA), branded State Theatre Company South Australia, formerly the South Australian Theatre Company (SATC), is South Australia's leading professional theatre company, and a statutory corporation. It was established as the official state theatre company by the State Theatre Company of South Australia Act 1972, on the initiative of Premier Don Dunstan.
Many of the performances are staged at the Dunstan Playhouse and Space Theatre at the Adelaide Festival Centre. As of November 2024[update] the artistic director and co-CEO is Petra Kalive. Notable actors, writers and directors working with the company have included Patrick White, Neil Armfield, Ruth Cracknell, Andrew Bovell, Judy Davis, Gale Edwards, Mel Gibson, Geoffrey Rush, Jim Sharman, Hugo Weaving, Elena Carapetis and John Wood.