| IDRC | I Don't Really Care 
| Others |
| IDRC | Illegal Dumping Resource Center
| Others |
| IDRC | Import Drag Racing Circuit
| Others |
| IDRC | Improved Data Recording Capability
| Others |
| IDRC | Inclusive Design Research Centre
| Others |
| IDRC | Incremental Default Risk Charge
| Others |
| IDRC | Indiana Diabetes Research Center
| Others |
| IDRC | Industrial Data Research Corporation
| Others |
| IDRC | Infection Disease Research Core, Arizona Molecular Diagnostic and Research Laboratories
| Others |
| IDRC | Infectious Disease Research Center
| Others |
| IDRC | Infectious Diseases Research Collaboration
| Others |
| IDRC | Installation Deployment Readiness Cell
| Others |
| IDRC | Intel Distributor Resource Center
| Others |
| IDRC | Interdisciplinary Research Consultants
| Others |
| IDRC | Interior Dispute Resolution Council
| Others |
| IDRC | Interior Door Replacement Company
| Others |
| IDRC | International Data Resource Center, University of Michigan
| Others |
| IDRC | International Development Research Center
| Others |
| IDRC | International Development Research Centre
| Others |
| IDRC | International Development Research Council
| Others |
| IDRC | International Diffuse Reflectance Conference
| Others |
| IDRC | International Disaster and Risk Conference
| Others |
| IDRC | International Dispute Resolution Centre
| Others |
| IDRC | International Donor Registry Conference
| Others |
| IDRC | International Dressage Riders Club
| Others |
| IDRC | International Dynamics Research Corporation
| Others |
| IDRC | Intoxicated Driver Resource Center
| Others |
| IDRC | Intoxicated Driver Resource Centers
| Others |
| IDRC | Intoxicated Drivers Resource Center
| Others |
| IDRC | Intoxicated Drivers's Resource Center
| Others |
| IDRC | Intoxicated Driving Resource Center
| Others |