| Acronym | Definition |
|---|
| UOA | University of Athens |
| UOA | Unit of Analysis |
| UOA | University of Auckland (New Zealand) |
| UOA | Used Oil Analysis |
| UOA | Unit of Accounting (currency exchange ratio) |
| UOA | United Ostomy Association |
| UOA | University Of Alberta |
| UOA | University of Aberdeen (UK; aka Aberdeen University; also seen as AU) |
| UOA | Unit of Assessment |
| UOA | University of Arkansas |
| UOA | Unit of Action |
| UOA | Upward Obligation Adjustment (US DoD) |
| UOA | Universal Order of Armageddon (band) |
| UOA | Unit Oriented Architecture (enterprise architecture) |
| UOA | Up Their Own Arse |
| UOA | Ukimwi Orphans Assistance (Tanzania) |
| UOA | Upon Our Arrival |
| UOA | Upper Open Auxiliary |
| UOA | Ultimate Observer Association (ultimate) |