| ACUA | Advisory Council for Undergraduate Affairs 
| Others |
| ACUA | Advisory Council on Underwater Archaeology
| Others |
| ACUA | Alabama Credit Union Administration
| Others |
| ACUA | Alberta Council for the Ukrainian Arts
| Others |
| ACUA | ArchiCAD Users Association
| Others |
| ACUA | Archives of the Catholic University of America
| Others |
| ACUA | Association of College & University Auditors
| Others |
| ACUA | Association of College and University Auditors
| Others |
| ACUA | Association of College University Auditors
| Others |
| ACUA | Atlantic County Utilities Authority
| Others |