CMV may refer to:
- Commercial motor vehicle
- Continuous mandatory ventilation
- Cruise & Maritime Voyages, a defunct UK-based shipping company
- 905 (in Roman numerals)
- Grizzly Combat Mobility Vehicle, a tank based combat engineering vehicle
- Chevrolet CMV, a rebadged Daewoo Damas/Suzuki Carry van
Aviation
- Calima Aviación, ICAO airline designator
- Coromandel Aerodrome, IATA airport designator
Viral diseases
- Cauliflower mosaic virus
- Cucumber mosaic virus
- Cytomegalovirus, a genus of viruses
- Human cytomegalovirus, the species which infects humans