MRV can refer to:
- Merovingian Music
- Multiple reentry vehicle
- MRV Communications
- MRV Dairy Solutions
- MRV Marketing
- MRV Engenharia, a Brazilian homebuilder company
- The IATA code for Mineralnye Vody Airport
- Magnetic resonance venography, a variation of magnetic resonance angiography
- Magnetic Resonance Velocimetry, an experimental method to obtain velocity fields in fluid mechanics
- Medium Reconnaissance Vehicle, an Australian M113 armored personnel carrier variant
- Measurable, Reportable, Verifiable (of carbon emissions reductions), for example in the REDD context, or the structure and process of Measuring, Reporting, and Verification in a general climate agreement
- The Myth of the Rational Voter, a book by Bryan Caplan about rational irrationality and democratic failure.
- Roll Flight MR V, a German powered parachute design.
- Machine Readable Visa