CVN may refer to:
- Cable Value Network, a 1980s cable shopping channel, purchased in 1989 by QVC
- Charpy V-notch Number (Charpy Energy), the output of a Charpy impact test
- Card Verification Number for credit cards (3 digits on the back of the card)
- Courtroom View Network, a media company that webcasts trials
- Canes Venatici (constellation), CVn, standard astronomical abbreviation
- Aircraft carrier, Nuclear.
- Crime Victim Notification (computerised system)
- Countervandalism Network, a network of volunteers dedicated to reducing vandalism on Wikimedia Foundation wikis.