Creator
- Arthur Groom1
- Arthur Herbert Affleck1
- Arthur Hoey Davis1
- Arthur Murphy1
- Artists' Society of Canberra1
- Arts Council of Australia (ACT)1
- Arundel Del Re1
- Ashton Robinson1
- Ashton's Circus1
- Ashworth, H. Ingham (Henry Ingham), 1907-19911
- Asian Studies Association of Australia1
- Association of Heads of Independent Schools of Australia1
- Athol L. Johnson1
- Atlee Arthur Hunt1
- Ausinet1
- Ausinet Users Committee1
- Australasian Federation League of New South Wales1
- Australia on the Map 1606-20061
- Australian Academy of Technological Sciences1
- Australian Association for Cultural Freedom1