| Acronym | Definition |
|---|
| IWLS➣International Workshop on Logic Synthesis |
| IWLS➣International Water Lily Society (est. 1984) |
| IWLS➣Impact of Weight Loss Scale (HIV research) |
| IWLS➣International Wilderness Leadership School |
| IWLS➣Inselsberg & Winton Language School (Prague, Czechoslovakia) |