Con may refer to:

• Confidence trick, also known as con, scam, or flim flam
• Con (TV series), secrets of the con artist revealed
• Convention (meeting), e.g. "Comic-Con"
• Conference, e.g. “youth con” especially in Unitarian Universalist circles
• Convict, as in ex-con, a person who has been convicted of a crime
• Contact lens, in Hong Kong English
• Conning tower, a raised platform on a ship or submarine
• Cornwall, England, via its Chapman code
• Concord Municipal Airport, in Concord, New Hampshire, via its IATA code
• Continental Oil, via its ICAO airline designator
• Commonwealth of Nations, an association of primarily former British colonies
• In Italian musical terms used in English, it indicates "with"

CON may also refer to:

• Certificate of Need
• Commander of the Order of the Niger
• The Chronicles of Narnia, a series of seven fantasy novels for children written by C. S. Lewis
• Naruto: Clash of Ninja

See also

• Conference (disambiguation)
• Kon (disambiguation)
• Pro (disambiguation)
• Contrary (disambiguation)
• Contra (disambiguation)
• Conn (disambiguation)
• Khan (disambiguation)
• Constantine (disambiguation)