UEO
| Acronym | Definition |
|---|---|
| UEO | Unión Europea Occidental (Spanish: Western European Union) |
| UEO | Upazila Education Office (Bangladesh) |
| UEO | Unione dell'Europa occidentale |
| UEO | Unexploded Ordnance (mines) |
| UEO | United Earth Oceans Organization (Seaquest DSV) |
| UEO | User Experience Optimization |
| UEO | Unit Executive Officer (college government) |
| UEO | Upstream Environmental Operations (Husky Energy) |
| UEO | Uni Expansion Ouest (French: Kingdom Expansion West) |
| UEO | Utah Energy Office |