| | | |
| CHILDREN OVERSEAS RECEPTION BOARD COUNCIL | |
| CHINESE FORCES | |
| CHINESE LABOUR CORPS | |
| CHURCH OF ENGLAND NATIONAL EMERGENCY FUND | |
| CINEMAS | |
| CIPHER UNITS | |
| CITIZEN'S MILITARY FORCE | |
| CITY OF BALLARAT REGIMENT | |
| CITY OF ESSENDON REGIMENT | |
| CITY OF GEELONG REGIMENT | |
| CITY OF MELBOURNE REGIMENT | |
| CITY OF NEWCASTLE REGIMENT | |
| CITY OF PERTH REGIMENT | |
| CITY OF SYDNEY REGIMENT | |
| CIVIL DEFENCE ORGANISATIONS | |
| CIVILIAN LABOUR UNITS | |
| CLEARANCE DIVING TEAMS | |
| CLUBS | |
| COASTWATCHERS | |
| COBB FORCE | |
| COCKATOO ISLAND DOCKYARD | |
| COLONIAL MILITARY FORCES | |
| COMMANDERS, ROYAL ENGINEERS (WORKS) | |
| COMMANDO UNITS | |
| COMMONWEALTH AIRCRAFT CORPORATION | |
| COMMONWEALTH CEASEFIRE MONITORING FORCE (ZIMBABWE - RHODESIA) | |
| COMMONWEALTH CLOTHING FACTORY | |
| COMMONWEALTH HORSE | |
| COMMONWEALTH MILITARY TRAINING TEAM, UGANDA | |
| COMMONWEALTH NAVAL FORCES (AMALGAMATED COLONIAL NAVAL FORCES FROM 1901 TO FORMATION OF RAN IN 1911) | |