- CAF
- Confederation of African Football, the regional body for African nations.
- Cap
- An individual appearance for a national team.
- Captain
- The on-field leader of a team, identified by an armband, traditionally responsible for the coin toss and for communicating with the referee.
- Clean sheet
- A match in which a goalkeeper or team does not concede any goals.
- CONCACAF
- Confederation of North, Central American and Caribbean Association Football — the regional governing body for the United States, Canada, Mexico and the wider region.
- CONMEBOL
- South American Football Confederation, governing the ten federations of South America.
- Corner kick
- A set-piece restart awarded to the attacking team after the defending team puts the ball over its own goal line, taken from the nearest corner arc.