| Acronym | Definition |
|---|
| MRF | Markov Random Field |
| MRF | Material Recovery Facility |
| MRF | Materials Recycling Facility |
| MRF | Movement for Rights and Freedoms (Bulgaria) |
| MRF | Motorcycle Riders Foundation |
| MRF | Medium Range Forecast (weather forecasting model) |
| MRF | Media Resource Function |
| MRF | Magneto Rheological Finishing (method to polish optic lenses) |
| MRF | Melanoma Research Foundation |
| MRF | Medical Research Foundation (Oregon Health and Science University; Portland, OR) |
| MRF | Mobile Riverine Force |
| MRF | Muscle Regulatory Factor |
| MRF | Morgellons Research Foundation (Pittsburgh, PA) |
| MRF | Mineral Resources Forum |
| MRF | Multi-Role Fighter |
| MRF | Meningitis Research Foundation |
| MRF | Møre Og Romsdal Fylkesbåtar (ferry boat and bus company in West Norway) |
| MRF | Michigan Renaissance Festival |
| MRF | Marfa Municipal Airport (Marfa, Texas airport code) |
| MRF | Microsoft Readiness Framework |
| MRF | Mississippi River Festival (Southern Illinois University Edwardsville) |
| MRF | Metal Removal Fluid |
| MRF | Mobile Reconnaissance Force |
| MRF | Turk Movement for Rights and Freedoms (Bulgarian political party) |
| MRF | Maintenance Replacement Factor |
| MRF | Multiple Risk Factors |
| MRF | Military Retirement Fund |
| MRF | Maintenance Request Form |
| MRF | Masonic Restoration Foundation |
| MRF | Material Request Form |
| MRF | Mentally Retarded Female (TV show Arrested Development) |
| MRF | Madras Rubber Factory, Ltd. |
| MRF | Monthly Report Form |
| MRF | Marmarth Research Foundation |
| MRF | Manager Review File |
| MRF | Most Recent Forecast |
| MRF | Minimum Residual Flow (water Industry, volume of water which must be left in a river) |
| MRF | Metal Recovery Facility (US DOE) |
| MRF | Music for the Royal Fireworks (Handel composition) |
| MRF | Management for Responsible Fisheries (FAO) |
| MRF | Mississippi River Fund |
| MRF | Minipig Research Forum (UK) |
| MRF | Message-Refusal Signal (ITU-T) |
| MRF | Material Review Form |
| MRF | Mission Reliability Factor |
| MRF | Master Record Form (insurance) |
| MRF | Modi Rubber Factory (Chennai, India) |
| MRF | Modular Rigid Frame (construction industry) |
| MRF | Module Repair Facility |
| MRF | MSE Repair Facility |
| MRF | Milestone Reference File |
| MRF | Mobile Relay Facility |
| MRF | Minority Risk Factors |