
The coat of arms of Australia, officially called the Commonwealth Coat of Arms, is the formal symbol of the Commonwealth of Australia. A shield, depicting symbols of Australia's six states, is held up by the native Australian animals, the kangaroo and the emu. The seven-pointed Commonwealth Star surmounting the crest also represents the states and territories, while floral emblems appear below the shield.

The Coat of arms of New South Wales is the official coat of arms of the Australian state of New South Wales. It was granted by royal warrant of King Edward VII dated 11 October 1906.

The coat of arms of Norfolk Island is the official symbol of the island and external Australian territory of Norfolk Island. It was granted by a Royal Warrant of Queen Elizabeth II on 20 October 1980.

The coat of arms of the Northern Territory is the official heraldic symbol representing the Australian territory. They were officially granted by royal warrant of Queen Elizabeth II on 11 September 1978. The arms, uniquely in Australia, incorporate all of the territory's floral, animal and bird emblems: the Sturt's desert rose, red kangaroo and wedge-tailed eagle.

The coat of arms of Queensland is the oldest in Australia, and was first granted by Queen Victoria in 1893 through the simplest form of heraldic grants; with the shield of arms, motto, helmet, mantling and crest.

The Coat of arms of South Australia is the official symbol of the state of South Australia. It was granted by Queen Elizabeth II on 19 April 1984. They replaced a coat of arms granted to the State in 1936 by King Edward VIII.

The coat of arms of Tasmania is the official symbol of the Australian state and island of Tasmania. It was officially granted by King George V in May 1917. The shield features significant examples of Tasmanian industry: a sheaf of wheat, hops, a ram and apples. It is surmounted by a red lion that also features on the State badge. The shield is supported by two thylacines with a motto beneath, Ubertas et Fidelitas, which is Latin for "Fertility and Faithfulness".

The Coat of Arms of Victoria is the official heraldic symbol of the Australian state of Victoria. Victoria was the second state of Australia to gain arms, granted on 6 June, 1910 by royal warrant of King George V. The state had been named in 1851 after his grandmother, who was in reign at the time. The final version of the arms was granted 28 March, 1978 in the royal warrant issued by Queen Elizabeth II.

The coat of arms of Western Australia is the official coat of arms of the Australian state of Western Australia. It was granted by a royal warrant of Elizabeth II, Queen of Australia dated 17 March 1969.