Look up undercover in Wiktionary, the free dictionary.
Being undercover is the practice of disguising one's identity for the purposes of a police investigation or espionage.
Undercover may also refer to:
- Undercover: The True Story of Britain's Secret Police (2012), a non-fiction book by The Guardian journalists Rob Evans and Paul Lewis
- Need for Speed: Undercover, a 2008 entry in the Need for Speed video game series
- Undercover (novel), a 2015 novel by Danielle Steel