| UAAS | Ukrainian Academy of Agrarian Sciences 
| Others |
| UAAS | Ukrainian Academy of Agricultural Sciences
| Others |
| UAAS | Underwater Acoustic Analysis System
| Others |
| UAAS | Unification of Athens Archaeological Sites
| Others |
| UAAS | Union of Armenian Associations of Sweden
| Others |
| UAAS | United Association of Alternative Science
| Others |
| UAAS | University Advising and Academic Services
| Others |
| UAAS | University Auditing and Advisory Services
| Others |
| UAAS | University of Applied Arts and Sciences
| Others |
| UAAS | Unsafe At Any Speed
| Others |
| UAAS | Upper Air Atmospheric Sounding
| Others |