| Acronym | Definition |
|---|
| MFR | Manufacturer |
| MFR | Memorandum For Record |
| MFR | Rogue Valley International/Medford Airport (airport code; Medford, OR, USA) |
| MFR | Maison Familiale Rurale (French: Rural Family House; educational association) |
| MFR | Marine Forces Reserve (USMC) |
| MFR | Minimum Funding Requirement |
| MFR | MineFactory Reloaded |
| MFR | Multifuntion Relay (various companies) |
| MFR | Myofascial Release |
| MFR | Melt Flow Rate |
| MFR | Missing Frame Ratio |
| MFR | Mainframe |
| MFR | Multi Frequency Receivers |
| MFR | Multi Function Recorder |
| MFR | Multiple Frame Rate |
| MFR | Moray Firth Radio (UK Radio Station) |
| MFR | Managing for Results |
| MFR | Mass Flow Rate |
| MFR | Memorandum for the Record |
| MFR | Multilink Frame Relay |
| MFR | Mitsui Fudosan Residential Co., Ltd. (Japan) |
| MFR | Manipulator Foot Restraint (US NASA) |
| MFR | Medical First Responder |
| MFR | Multi Family Residential |
| MFR | Medicinska Forskningsrådet (Swedish Medical Research Council) |
| MFR | Maria Fiorini Ramirez (New York; New York) |
| MFR | Multi-Function Recorder (Addonics) |
| MFR | Maximum Flight Rate |
| MFR | Multi-Filter Radiometer |
| MFR | Multifunction Radar |
| MFR | Middle French (linguistics) |
| MFR | Marine Force Recon |
| MFR | Military Flight Release (US Air Force) |
| MFR | Methanofuran |
| MFR | My Finest Regards |
| MFR | Motion for Relief |
| MFR | Middle Finger Response |
| MFR | Male-Female Relationship (psychology) |
| MFR | Medford, OR, USA - Medford-Jackson County Airport (Airport Code) |
| MFR | Mamari Freres (Lebanon) |
| MFR | Multi Frequency Receiver |
| MFR | Memo for the Record |
| MFR | Multi-Function Radio |
| MFR | Mobile Force Reserve (UK MoD) |
| MFR | Mission Fired Report |
| MFR | Most Forward with Fixed Radius |
| MFR | Minimum Financial Responsibility |
| MFR | Matched-Filter Receiver |
| MFR | Modulation Frequency Range |
| MFR | Monthly Failure Rate |
| MFR | Material Failure Report |
| MFR | Mountain Fresh Rainier |
| MFR | Men and Family Relationships (Australia) |
| MFR | Maintenance Fault Reporting |
| MFR | Manipulator/Mobile Foot Restraint |
| MFR | Malfunction Receiver |
| MFR | Member of the Federal Republic of Nigeria (award) |
| MFR | McLean Family Restaurant (McLean, VA) |
| MFR | Maximum Fragment Range (military munitions) |
| MFR | Mainfranken Racing e.V. (Germany) |
| MFR | Maintenance Fee Revenue |
| MFR | Master Formula Record (pharmaceutical) |