List of world cruiserweight boxing champions
This is a chronological list of world cruiserweight boxing champions, as recognized by four of the better-known sanctioning organizations:
Championship recognition
- The World Boxing Association, founded in 1921 as the National Boxing Association,
- The World Boxing Council, founded in 1963,
- The International Boxing Federation, founded in 1983,
- The World Boxing Organization, founded in 1988,
Cruiserweight champions who won belts in other divisions
- Braxton, Jack, Michalczewski, Hill, Erdei, Adamek, Shumenov and Tiozzo all were light-heavyweight champions.
- Holyfield, Haye, and Usyk are the only former cruiserweight champions to win the heavyweight title with Holyfield and Usyk earning recognition as undisputed champions in both divisions.
- Toney won titles at middleweight and super middleweight. He also defeated John Ruiz in an attempt to win the heavyweight title but failed a post-fight drug test and the result was changed to a No Decision.
- Jack won titles at super middleweight.