| Acronym | Definition |
|---|
| WSTA | Western States Trucking Association (Upland, CA) |
| WSTA | Wall Street Technology Association |
| WSTA | Washington Science Teachers Association (Washington state) |
| WSTA | Wisconsin State Telecommunications Association |
| WSTA | Water Science and Technology Association |
| WSTA | Winston-Salem Transit Authority |
| WSTA | Wall Street Telecommunications Association |
| WSTA | West Sussex Teachers Association (UK) |
| WSTA | Wisconsin State Telephone Association |
| WSTA | Washington State Trapshooting Association |
| WSTA | World Federation of Societies for Technology in Anaesthesia |
| WSTA | Western States Terrazzo Association (Fountain Valley, CA) |
| WSTA | Weapon Systems Table of Allowance |
| WSTA | World Ship Trust Award |
| WSTA | World Societies for Technology in Anesthesia |
| WSTA | Wyoming State Trapshooting Association |
| WSTA | Welland Sport Tourism Alliance (Welland, Ontario, Canada) |