VCO may refer to:
Military
- Veterinary Corps Officer, see Veterinary corps (disambiguation)
- Viceroy's commissioned officer, British Indian Army role (1885–1947)
Technology
- Voltage-controlled oscillator, an electronic device
- Voice Carry Over, a telecommunications relay service
- Akatsuki (spacecraft), or the Venus Climate Orbiter
- Virtual Central Office, in Open Platform for NFV network-function virtualization software
Other uses
- Voyage Century Online, a nautically themed, free-to-play, massively multiplayer online role-playing game
- Vice Commodore, an elected yacht club committee member
- VCO SA, the joint-stock company, and a distributor of Volcano clothing brand
This disambiguation page lists articles associated with the title VCO.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: