| Acronym | Definition |
|---|
| WSIA➣Web Services for Interactive Applications |
| WSIA➣Washington Self-Insurers Association (Olympia, WA; est. 1972) |
| WSIA➣We Study in Australia (international study abroad) |
| WSIA➣Water Supply Improvement Association |
| WSIA➣Washington Society of Investment Analysts, Inc. |
| WSIA➣Web Savvy Internet Addict |
| WSIA➣Weapon System Integration Agent |