IRWM
| Acronym | Definition |
|---|---|
| IRWM | Integrated Regional Water Management (grant program; California) |
| IRWM | Irish Recycling & Waste Management |
| IRWM | Integrated Regional Wetland Monitoring (California) |
| IRWM | Integrated Resource and Waste Management (EU) |
| IRWM | International Rainbow Week Movement (sports) |