| 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 |