CVO may refer to:
- Chief visionary officer,
- Commander of the Royal Victorian Order, a British honour
- Chief Veterinary Officer (United Kingdom)
- Circumventricular organs, positioned around the ventricular system of the brain
- Common velocity obstacle, a type of velocity obstacle
- Corvallis Municipal Airport's IATA airport code
- Center Vol's ICAO airline code
- Harley-Davidson CVO, a category of limited-edition Harley-Davidson motorcycles produced by its Custom Vehicle Operations group.