| UCSA | Uniform Controlled Substances Act 
| Others |
| UCSA | Unique Customer Service Approach
| Others |
| UCSA | United Communities of San Antonio
| Others |
| UCSA | United Community Services Of America
| Others |
| UCSA | University Campus St Albans
| Others |
| UCSA | University Center and Student Activities
| Others |
| UCSA | University College Student Association
| Others |
| UCSA | University Committee on Student Appeals
| Others |
| UCSA | University of California Student Association
| Others |
| UCSA | University of Canberra Student Association
| Others |
| UCSA | University of Canterbury Students Association
| Others |
| UCSA | University of Canterbury Students' Association
| Others |