IRRI
| Acronym | Definition |
|---|---|
| IRRI | International Rice Research Institute (Philippines) |
| IRRI | Industrial Relations Research Institute (Wisconsin) |
| IRRI | Institut Royal des Relations Internationales |
| IRRI | International Renewable Resources Institute (Mexico) |
| IRRI | International Resources and Recycling Institute (est. 2005) |
| IRRI | Initial Response Readiness Inspection |