| MCR | Georgetown Owen Robers Interna, Cayman Islands 
| Others |
| MCR | Macro File
| Others |
| MCR | Macroglobulin complement related
| Others |
| MCR | Magic Carpet Ride
| Others |
| MCR | Magnetic Card Reader
| Others |
| MCR | Magnetic Cell Regenerator
| Others |
| MCR | Main Control Room
| Others |
| MCR | Maintenance Control Report
| Others |
| MCR | Management of Customer Relationship
| Others |
| MCR | Mapping Charting And Reproduction
| Others |
| MCR | Marketing Communication Resource
| Others |
| MCR | Marketing Communications Resource
| Others |
| MCR | Mass Colonial Records
| Others |
| MCR | Master Change Record
| Others |
| MCR | Master Control Records
| Others |
| MCR | Master Control Room
| Others |
| MCR | Master Cross Reference
| Others |
| MCR | Master of Clinical Research
| Others |
| MCR | Matchless Crown Racing
| Others |
| MCR | MATLAB Compiler Runtime
| Others |
| MCR | MATLAB Component Runtime
| Others |
| MCR | Maximum Continuous Rating
| Others |
| MCR | Maximum Continuous Ratings
| Others |
| MCR | McCloud River Railroad (McCloud Railway)
| Others |
| MCR | Measurement Control and Regulation
| Others |
| MCR | Medical Care Ratio
| Others |
| MCR | Medical Center of the Rockies
| Others |
| MCR | Medical College Road
| Others |
| MCR | Medicare Cost Report
| Others |
| MCR | Meet Chat and Relax
| Others |
| MCR | Meets College Requirements
| Others |
| MCR | Memory Card Reader
| Others |
| MCR | Memory Configuration Register
| Others |
| MCR | Memory Controller
| Others |
| MCR | Mercy Connection Records
| Others |
| MCR | Message Completion Rate
| Others |
| MCR | Meta Cognitive Renata
| Others |
| MCR | Metabolic Clearance Rate
| Others |
| MCR | Michigan Court Rules
| Others |
| MCR | Micro Cellular Rubber
| Others |
| MCR | Middle Combination Room
| Others |
| MCR | Middle Common Room
| Others |
| MCR | Midwest Classic Racing
| Others |
| MCR | Mini Club Romand
| Others |
| MCR | Mini Cooper Register
| Others |
| MCR | Minimum Capital Requirement
| Others |
| MCR | Minimum Cell Rate
| Others |
| MCR | Minimum Course Requirements
| Others |
| MCR | Miranda Cosgrove Rocks
| Others |
| MCR | Mirror Consistency Recovery
| Others |
| MCR | Mission Capable Rate
| Others |
| MCR | Mission Configurable Rifle
| Others |
| MCR | Mission Confirmation Review
| Others |
| MCR | Mississippi Choctaw Refused
| Others |
| MCR | Mississippi Choctaw Rejected
| Others |
| MCR | Mississippi Choctaw Removed
| Others |
| MCR | Mobilized Colistin Resistance
| Others |
| MCR | Model Court Room
| Others |
| MCR | Modem Control Register
| Others |
| MCR | Modified Cell Rate
| Others |
| MCR | Modified Compliance Review
| Others |
| MCR | Modular Common Rail
| Others |
| MCR | Modular Converters For Regulation
| Others |
| MCR | Moldova Classic Rally
| Others |
| MCR | Molecular Cancer Research
| Others |
| MCR | Mona City Raceway
| Others |
| MCR | Monitor Console Routine
| Others |
| MCR | Montgomery County Region
| Others |
| MCR | Monthly Classification Ratio
| Others |
| MCR | Moorea Coral Reef
| Others |
| MCR | Mortgage Call Report
| Others |
| MCR | Motivation Commitment and Resilence
| Others |
| MCR | Motivation Commitment and Resilience
| Others |
| MCR | Motor City Region
| Others |
| MCR | Motor-Cycle Rickshaw
| Others |
| MCR | Multi Caliber Rifle
| Others |
| MCR | Multi Channel Receiver
| Others |
| MCR | Multi Channel Routing
| Others |
| MCR | Multi Class Routing
| Others |
| MCR | Multi Color Rim
| Others |
| MCR | Multi-Component Reactions
| Others |
| MCR | Multichannel Control Register
| Others |
| MCR | Multiprogrammatic Capability Resource
| Others |
| MCR | Multivariant Curve Resolution
| Others |
| MCR | Multivariate Curve Resolution
| Others |
| MCR | Muscarinic Cholinergic Receptor
| Others |
| MCR | Muscle Car Racing
| Others |
| MCR | Muscle Car Restorations
| Others |
| MCR | Muscle Car Review
| Others |
| MCR | My Chemical Romance
| Others |
| MCR | My Chemical Romance's
| Others |
| MCR | My Coke Rewards
| Others |
| MCR | My Cool Robots
| Others |
| MCR | Myeloablative Conditioning Regimen
| Others |