| Acronym | Definition |
|---|
| MRC | Monthly Recurring Charge |
| MRC | Memory Re-Call (calculator) |
| MRC | Medical Research Council (UK) |
| MRC | Mobile (Radio) Router and Control |
| MRC | Media Research Center |
| MRC | Medical Reserve Corps (US Citizen Corps) |
| MRC | Master Requirement Code (US federal cataloging process) |
| MRC | Mekong River Commission |
| MRC | Medicare Rights Center |
| MRC | Mount Royal College |
| MRC | Model Rectifier Corporation |
| MRC | Media Rating Council |
| MRC | Medical Research Council of Canada |
| MRC | Massachusetts Rehabilitation Commission |
| MRC | Medical Research Charities (formerly Medical Research Agencies of America) |
| MRC | Mixed Raster Content |
| MRC | Marine Resources Center |
| MRC | Medical Research Council of South Africa |
| MRC | Maximal-Ratio Combining |
| MRC | Monnaie Royale Canadienne (Royal Canadian Mint) |
| MRC | Multicultural Resource Center |
| MRC | Marine Resources Committee (Friday Harbor, WA) |
| MRC | Mission Research Corporation |
| MRC | Merchant Risk Council |
| MRC | Mechanical Repair Coverage |
| MRC | Mississippi River Commission |
| MRC | Major Regional Conflict |
| MRC | Mid-Roll Change (film/camera) |
| MRC | Meat Research Corporation |
| MRC | Methodist Rehabilitation Center |
| MRC | Major Regional Contingency |
| MRC | Multinationals Resource Center (Washington, DC) |
| MRC | Marine Resources Council (Palm Bay, FL) |
| MRC | Maintenance Requirement Card |
| MRC | Minority Resource Center |
| MRC | Mountain Rescue Committee (United Kingdom) |
| MRC | Mathematics Research Center |
| MRC | Magneto-Resistive Cluster (tape recorder heads) |
| MRC | Monthly Recurring Cost |
| MRC | Modeling and Reasoning in Context (workshop) |
| MRC | Maryland Recyclers Coalition |
| MRC | Multiple Reporting Currencies (Oracle, finance) |
| MRC | McLaughlin Research Corporation |
| MRC | Minimum Resolvable Contrast |
| MRC | Machine-Readable Code |
| MRC | Municipalité Regional de Comté (Québec) |
| MRC | mIRC Script File (file extension) |
| MRC | Midway Research Center |
| MRC | Motorized Rifle Company |
| MRC | Memory Reference Code |
| MRC | Mixed Radix Conversion |
| MRC | Magnetic Recording Channel |
| MRC | Markless Register Control (Q.I. Press Controls) |
| MRC | Media Resource Control (Sprint) |
| MRC | Modular Radio Cabinet |
| MRC | Maintenance Repair Code |
| MRC | Monland Restoration Council (Fort Wayne, IN) |
| MRC | Modular Remote Cabinet |
| MRC | Materiel Release Confirmation |
| MRC | Materiel Readiness Command |
| MRC | Chief Machinery Repairman (Naval Rating) |
| MRC | Movement Report Center |
| MRC | Military Review Committee |
| MRC | Moisture Retention Curve (hydrology) |
| MRC | Message-based Reliable Channel |
| MRC | Magnetic Recording Conference |
| MRC | Mixed Raster Coding |
| MRC | Medical Readiness Committee |
| MRC | Medical Response Center |
| MRC | Meteorological Research Committee (Air Ministry, Great Britain) |
| MRC | Manpower Requirements Change |
| MRC | Maintenance Repair Card |
| MRC | Master Reference Code |
| MRC | Message Routing Component |
| MRC | Mercury Record Corporation |
| MRC | Mestrec Document (file extension) |
| MRC | Master Record Correction |
| MRC | Material Receipt Card |
| MRC | Mobile Radio Component (US military mobile radio systems) |
| MRC | Militarized Reconfigurable Computer |
| MRC | Malfunction Reporting and Control |
| MRC | Methodology Research Core |
| MRC | Marine Revitalization Corporation |
| MRC | Multi-Level Reverse Carry |
| MRC | Mental Retardation Counsellor (Canada) |