Kenneth Howard Norton Sr. (August 9, 1943 – September 18, 2013) was an American boxer who competed professionally from 1967 to 1981. He was awarded the WBC world heavyweight championship in 1978, after winning a close split decision over Jimmy Young in a title eliminator bout.
He is often known for his fights with Muhammad Ali, in which Norton won the first by split decision, lost the second by split decision, and lost the final by a controversial unanimous decision. Norton also fought Larry Holmes in 1978 during the first defense of his championship, narrowly losing a split decision and his WBC title.
Norton retired from boxing in 1981 and was inducted into the International Boxing Hall of Fame in 1992.
He also acted in a number of films.