| Abbreviation | Definition |
|---|---|
| ABASA | Artist Blacksmiths Association South Australia |
| ABCA | American British Canadian and Australian |
| ABCB | Australian Broadcasting Control Board |
| ABCB | Australian Building Codes Board |
| ABCC | Australia Brazil Chamber of Commerce |
| ABCC | Australian Building and Construction Commission |
| ABCC | Australian Building and Construction Commissioner |
| ABCR | Australian Breast Cancer Research |
| ABDA | American British Dutch Australian |
| ABDA | American-British-Dutch-Australian |
| ABDC | Australian Business Deans Council |
| ABDC | Australian Business Development Centre |
| ABDF | Australian Bearded Dragon Forum |
| ABDG | Australian Bug Detection Group |
| ABDR | Australian Bleeding Disorders Registry |
| ABDR | Australian Breast Device Registry |
| ABEF | Australian Business Excellence Framework |
| ABEP | Aboriginal Business Education Program |
| ABET | Aussie Boats for East Timor |
| ABFC | Australian Bike Friday Club |