John Felix Anthony Cena (/ˈsiːnə/; born April 23, 1977) is an American professional wrestler, rapper and actor signed to WWE. He has been described as "the face of the WWE for a long time" and one of the most polarising and divisive figures in WWE (or even professional wrestling) history, despite playing a heroic character for the majority of his career.

Cena started his professional wrestling career in 1999 with Ultimate Pro Wrestling, where he held the UPW Heavyweight Championship. Cena signed a developmental contract with the World Wrestling Federation (WWF, later renamed to WWE) in 2001, debuting on the main roster in 2002. As of October 2014, Cena has had 22 championships reigns and is a 15-time world champion, consisting of a record 12 reigns as WWE Champion/WWE World Heavyweight Champion and three reigns as World Heavyweight Champion. He has the fourth-highest number of combined days as WWE World Heavyweight Champion, behind Bruno Sammartino, Bob Backlund, and Hulk Hogan. He has also headlined WWE's flagship event, WrestleMania on five occasions (WrestleManias 22, 23, XXVII, XXVIII, and 29) over the course of his career.