| Abbreviation | Definition |
|---|---|
| ACGA | Australian Commonwealth Games Association |
| ACGB | Australian Centre for Grief and Bereavement |
| ACGEA | Australian Cattle Genetic Exports Agency |
| ACGEA | Australian Cattle Genetics Export Agency |
| ACGR | Australian Competitive Grant Register |
| ACGR | Australian Competitive Grants Register |
| ACGR | Australian Corneal Graft Registry |
| ACGR | Australian Council of Graduate Research |
| ACHI | Australian Classification of Health Interventions |
| ACHL | Australian Capital Home Loans |
| ACHM | Australian Cultural Heritage Management |
| ACHR | Australian Centre for Health Research |
| ACHS | Australian Council of Healthcare Standards |
| ACHS | Australian Council on Healthcare Standards |
| ACHV | Australian Centre for Hepatitis Virology |
| ACIAR | Australian Center for International Agricultural Research |
| ACIC | Australian Criminal Intelligence Commission |
| ACIF | Australian Communications Industry Forum |
| ACIF | Australian Construction Industry Forum |
| ACIFS | Australian Centre for Islamic Financial |