This is a list of world champions in professional boxing who retired undefeated, either during or after a title reign(s). It excludes current titleholders. Each champion's record is shown in the following format: winsâÂÂlossesâÂÂdraws, no contests.
As of March 2026, there have been 16 male boxing champions who finished their careers undefeated. The list includes boxers who were recognized by public acclamation before the era of sanctioning bodies and the creation of The Ring magazine, as well as boxers recognized by the NYSAC. The WBA (as the NBA), the WBC, the IBF, and the WBO began recognizing champions in 1921, 1963, 1983, and 1988 respectively, while The Ring began to do so in 1922.
As of March 2026, 22 female champions have finished their careers undefeated. Includes world titles from sanctioning agencies outside of WBA, WBC, WBO, IBF, and also outside of The Ring. Female world titles were inaugurated by the WBA, the WBC, the WBO, and the IBF in 2004, 2005, 2009, and 2010 respectively. The Ring began awarding titles to women in 2019 and six of the fifteen weight classes are still uninaugurated (as of September 30, 2022).