WSIS
| Acronym | Definition |
|---|---|
| WSIS | World Summit on the Information Society |
| WSIS | Who Should I Start? (fantasy football) |
| WSIS | Waste Stream Information Sheet |
| WSIS | White Smoke Identification System (US Navy) |
| WSIS | Workplace Safety and Insurance System (Canada) |
| WSIS | Whiplash Shaken Infant Syndrome (child neurology) |