WSIA
| 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 |