Found 5 full forms for WWIS
| Term | Full Form | Category |
|---|---|---|
| WWIS | FM-99.7, Black River Falls, Wisconsin 
| Others |
| WWIS | What Works In Schools
| Others |
| WWIS | WIPP Waste Information System
| Others |
| WWIS | World Weather Information Service
| Others |
| WWIS | WorldWide Information Systems
| Others |