An octuple champion is a boxer who has won major world titles in eight weight classes.
To date, the only octuple champion is Manny Pacquiao, who has won twelve major world titles.
[1] Pacquiao achieved the feat when he defeated Antonio Margarito via a unanimous decision to win the WBC super welterweight title on November 13, 2010 at the Cowboys Stadium, Arlington, Texas, US.
[2] Nine of his world championships came from the "Big Four" sanctioning bodies (WBA, WBC, IBF, WBO) and three were from The Ring.
[3] The following are the major world titles won by Pacquiao (arranged chronologically).