IWWG
| Acronym | Definition |
|---|---|
| IWWG | International Waste Working Group (waste management information group; est. 2002; Padova, Italy) |
| IWWG | Interagency Wheelchair Work Group (Arlington, VA) |
| IWWG | International Women's Writers Guild |
| IWWG | Indiana Wind Working Group (est. 2005) |