Michael Gerard Tyson (born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005. He reigned as the undisputed world heavyweight champion from 1987 to 1990 and was the first heavyweight boxer to simultaneously hold the WBA, WBC, and IBF titles, as well as the only heavyweight to successively unify them. Claiming his first belt at 20 years, four months, and 22 days old, Tyson holds the record as the youngest boxer to win a heavyweight title.

Tyson was known for his ferocious and intimidating boxing style as well as his controversial behavior inside and outside the ring. Nicknamed "Iron" and "Kid Dynamite" in his early career, and later known as "The Baddest Man on the Planet", Tyson is considered one of the best heavyweights of all time. Tyson holds the third longest unified championship reign in heavyweight history at eight consecutive defenses. He currently ranks No. 14 in BoxRec's ranking of the greatest heavyweight boxers in history.

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