| | | |
| HEADQUARTERS UNITS | |
| HEAVY ANTI AIRCRAFT BATTERIES | |
| HEAVY ARTILLERY BRIGADES | |
| HEIDELBERG REGIMENT | |
| HENTY REGIMENT | |
| HINDMARSH REGIMENT | |
| HIRING UNITS | |
| HIS MAJESTY'S COLONIAL SHIPS | |
| HISTORICAL RECORDS UNITS | |
| HMAS ABRAHAM CRIJNSSEN | |
| HMAS ADELAIDE (1918-1949) | |
| HMAS ADELAIDE (1980-) | |
| HMAS AE1 | |
| HMAS AE2 | |
| HMAS ALBATROSS (1928-1938) | |
| HMAS ALBATROSS (NOWRA) | |
| HMAS ALFIE CAM | |
| HMAS ALLENWOOD | |
| HMAS ANZAC (1919-1933) | |
| HMAS ANZAC (1951-1974) | |
| HMAS ANZAC (II) | |
| HMAS ANZAC (I) | |
| HMAS ARARAT | |
| | BT RAN CORVETTES | |
| HMAS ARCHER | |
| HMAS ARMIDALE | |
| HMAS ARUNTA | |
| HMAS ASSAULT (PORT STEPHENS) | |
| HMAS AUSTRALIA (1912-1924) | |
| HMAS AUSTRALIA (1928-1954) | |