The Shire of Diamantina is a local government area in Central West Queensland, bordering South Australia and the Northern Territory.

Like most places in Queensland with the "Diamantina" name, it was named after Lady Diamantina Bowen (née Roma), the wife of the first governor of Queensland, Sir George Bowen.

It covers an area of 94,731 square kilometres (36,575.8 sq mi),[2] and is the second largest LGA in the state.

The traditional language region includes the local government area of the Shire of Diamantina extending into the Outback Communities Authority of South Australia towards Innamincka.

[citation needed] The seat of the Council moved from Birdsville to Bedourie in 1953.