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 (WBA), founded in 1921 as the National Boxing Association (NBA), The World Boxing Council (WBC), founded in 1963, The International Boxing Federation (IBF), founded in 1983, The World Boxing Organization (WBO), founded in 1988, == Footnotes == 1 Championship recognition withdrawn due to champion's failure/refusal to defend title against mandatory or designated challenger. 2 Relinquished title.

Source: Wikipedia — List of world cruiserweight boxing champions (CC BY-SA 4.0)