| Acronym | Definition |
|---|
| UASI➣Urban Area Security Initiative |
| UASI➣Urban Areas Security Initiative (US Department of Homeland Security Office for Domestic Preparedness) |
| UASI➣United Audit Systems, Inc. (Cincinnati, OH) |
| UASI➣United American Sales, Inc. (est. 1972; Wilmington, OH) |
| UASI➣Upper-Air System Intercomparisons (World Meteorology Organization) |
| UASI➣Unmanned Aerial System Innovations |
| UASI➣United Air Specialists, Inc. (Cincinnati, OH) |