| IRIM | Independent Research Institute of Mongolia 
| Others |
| IRIM | Indigenous Resilience In Music
| Others |
| IRIM | Institute for Rare Isotope Measurement
| Others |
| IRIM | Institute for Robotics and Intelligent Machines
| Others |
| IRIM | Institutional Research AND
| Others |
| IRIM | Institutional Research and Information Management
| Others |
| IRIM | Intensive Repairables Item Managment
| Others |
| IRIM | Intensive Review of Internal Medicine
| Others |
| IRIM | Inter Regional Implementation Meeting
| Others |
| IRIM | Interfaith Refugee and Immigration Ministries
| Others |
| IRIM | International Research Institute of Management
| Others |