WSTI
| Acronym | Definition |
|---|---|
| WSTI | Wisconsin Statewide Transition Initiative |
| WSTI | Workshop on Security of Information Technologies (annual conference) |
| WSTI | Wide Area Surveillance Thermal Imager |
| WSTI | Western Star Trucks, Inc. (British Columbia, Canada) |
| WSTI | Wyzsza Szkola Technologii Informatycznych (Polish: Higher School of Information Technology; Katowicach, Poland) |
| WSTI | Welded Steel Tube Institute (Cleveland, OH) |