| Acronym | Definition |
|---|
| IGRC | Illinois Great Rivers Conference (United Methodist Church) |
| IGRC | International Gas Research Conference |
| IGRC | Inmate Grievance Resolution Committee |
| IGRC | Intergovernmental Relations Committee |
| IGRC | International Ground Robotics Competition |
| IGRC | Internationale Gesellschaft Rosalia Chladek |
| IGRC | Investors' Grievance Redressal Committee |
| IGRC | International Geodynamics Research Center |
| IGRC | Indonesian Genetic Resource Collection |
| IGRC | Interim Gender Recognition Certificate (UK) |
| IGRC | Information Gain Ratio for Clustering |
| IGRC | International Green Roof Congress |
| IGRC | Image Graphics Recording Center (Image Graphics) |
| IGRC | Italian Greyhound Rescue of Colorado |
| IGRC | ionotropic glutamate receptor channel |
| IGRC | Ile de Groix Rugby Club (France) |