| M&RF | Maintenance and Refurbishing Facility 
| Others |
| MRF | Macintosh Resource Format
| Others |
| MRF | Madras Rubber Factory
| Others |
| MRF | Magnetic Rotary Feeder
| Others |
| MRF | Magneto Rheological Finishing
| Others |
| MRF | Magneto-Rheological Fluid
| Others |
| MRF | Magnum Rim Fire
| Others |
| MRF | Mail reference Request Form
| Others |
| MRF | Maintenance Reset Function
| Others |
| MRF | Maintenance Responsibility File
| Others |
| MRF | Maintenance/ Repair Form
| Others |
| MRF | Major Reduction Factor
| Others |
| MRF | Management Reporting Framework
| Others |
| MRF | Marfa Municipal Airport
| Others |
| MRF | Marfa Municipal Airport, Marfa, Texas USA
| Others |
| MRF | Markov Random Field
| Others |
| MRF | Marks Russel File
| Others |
| MRF | Maryland Renaissance Festival
| Others |
| MRF | Massive Red Frogs
| Others |
| MRF | Master Reference File
| Others |
| MRF | Material Recovery Facility
| Others |
| MRF | Material Recycling Facility
| Others |
| MRF | Materials Reclaimation Facility
| Others |
| MRF | Materials Recovery Facility
| Others |
| MRF | Materials Recovery Facility (or Recycling or Factory)
| Others |
| MRF | Materials Recycling Facility
| Others |
| MRF | Materials Research Furnaces
| Others |
| MRF | Maximum Retarding Force
| Others |
| MRF | Mazda Rotary Fest
| Others |
| MRF | Measurements/stimuli Request Form
| Others |
| MRF | Media Resource Function
| Others |
| MRF | Medical Research Foundation
| Others |
| MRF | Medical Response Force
| Others |
| MRF | Medication Request Form
| Others |
| MRF | Medium Range Forecast
| Others |
| MRF | Medium Range Forecasting
| Others |
| MRF | Medium Range Forecasts
| Others |
| MRF | Melanoma Research Foundation
| Others |
| MRF | Meningitis Research Foundation
| Others |
| MRF | Mentally Retarded Female
| Others |
| MRF | Meta Raster Format
| Others |
| MRF | Microfilm Reference Number
| Others |
| MRF | Military Racquetball Federation
| Others |
| MRF | Military Reaction Force
| Others |
| MRF | Military Research Facility
| Others |
| MRF | Mineral Resources Forum
| Others |
| MRF | Mission Review Function
| Others |
| MRF | Mobile Riverine Force
| Others |
| MRF | Monochrome Recursive Format
| Others |
| MRF | Monthly Report Form
| Others |
| MRF | More Ridiculous Forecasts
| Others |
| MRF | Morgellons Research Foundation
| Others |
| MRF | Most reliable fellow
| Others |
| MRF | Motorcycle Riders Foundation
| Others |
| MRF | Mountain Red Fruit
| Others |
| MRF | Movement for Rights and Freedoms
| Others |
| MRF | Multidisciplinary Research Facility
| Others |
| MRF | Multimedia Resource Function
| Others |
| MRF | Multiple Reference Frame
| Others |
| MRF | Multirole Fighter
| Military, Air Force, Defence, Weapon, Hardware, Transport, Air Transport |
| MRF | Multistate Research Fund
| Others |
| MRF | Mutual Recognition of Funds
| Others |
| MRF | Myelin Repair Foundation
| Others |