| Acronym | Definition |
|---|
| IWPA | International Wood Products Association (Alexandria, Virginia) |
| IWPA | Indian Wind Power Association (Chennai, India) |
| IWPA | Indian Wildlife Protection Act (India) |
| IWPA | International Weight Pull Association |
| IWPA | International Working People's Association |
| IWPA | Interim Wellhead Protection Area |
| IWPA | International Web Page Awards |
| IWPA | Illinois Wood Products Association (Springfield, IL) |
| IWPA | International Wedding Professionals Association |
| IWPA | International Womens' Polo Association (Surrey, UK) |
| IWPA | Irish Water Polo Association |
| IWPA | Interagency Wetlands Policy Act of 1989 |
| IWPA | Indian Women Pilots Association (India) |
| IWPA | iWatchDog Police Association |
| IWPA | International Word Processing Association |
| IWPA | Independent Work Product Assessments |
| IWPA | Iowa Water Pollution Association |
| IWPA | International Women Photographer Association |
| IWPA | International Work Platform Association |