Randall Bailey (born September 13, 1974) is an American professional boxer. A veteran of the sport for over twenty years, he is a former world champion in two weight classes, having held the WBO light welterweight title from 1999 to 2000, and the IBF welterweight title in 2012. Additionally, he held the WBA interim light welterweight title in 2002. Nicknamed "The Knock-Out King" for his exceptional knockout power, Bailey is considered to be one of the hardest punchers in boxing history.