| Acronym | Definition |
|---|
| IWMA | Integrated Waste Management Authority |
| IWMA | Irish Waste Management Association |
| IWMA | International Working Men’s Association |
| IWMA | International Wire & Machinery Association |
| IWMA | Iron Wolf Martial Arts |
| IWMA | Integrated Waste Management Account |
| IWMA | International Workshop on Max-Algebra |
| IWMA | International Water Mist Association |
| IWMA | Integrated Waste Management Act of 1989 |
| IWMA | Interim Watershed Mitigation Addendum |
| IWMA | Importers, Wholesalers and Manufacturers Association |
| IWMA | Identical-Waveform Multiple-Access |
| IWMA | International Workshop on Modern Acoustics |
| IWMA | Integrated WDM Monitor Array |