The Shire of Chinchilla was a local government area in the Darling Downs region of Queensland, Australia. The shire, administered from the town of Chinchilla, covered an area of 8,700.3 square kilometres (3,359.2 sq mi), and existed as a local government entity from 1912 until 2008, when it amalgamated with the Town of Dalby and the Shires of Murilla, Tara and Wambo and the southern part of Taroom to form the Western Downs Region.