Kenneth Howard Norton (born August 9 1945) is a heavyweight boxer who was born in Jacksonville, Illinois. Norton gave Muhammad Ali and Larry Holmes hard fights.

Ken "The Black Hercules" Norton was a well regarded heavyweight contender for the title in the 1970s. He was an ex marine and is well known for his win over Muhammad Ali although many felt Norton was hard done by in their two other bouts. In the first bout Norton broke Ali's jaw in the early rounds and went on to win a Unanimous Decision. The other two bouts, Norton lost on points. Norton also fought George Foreman and was stopped in two rounds. Then he was stopped by hard hitting Earnie Shavers in one round.

Norton nonetheless kept as a top contender. Following Leon Spinks victory over Muhammad Ali for the world championship in February, 1978, Spinks elected to fight a return bout against Ali rather than face Norton. The World Boxing Council, which had mandated a Spinks-Norton bout for their championship, withdrew its recognition of Spinks as champion.

On March 18, 1978, the WBC made history by naming Norton its champion without benefit of a title match. The WBC stated that they considered Norton's victory over Jimmy Young a 'retroactive championship match'). Norton wouldn't hold onto the title for very long.

In his first 'defense' of the WBC title, Norton and new #1 contender Larry Holmes met in what many consider a classic fight. After 15 brutal rounds, Holmes was awarded the title via an extremely close split decision.

In 1981, Norton retired after getting knocked out in one round by Gerry Cooney. Retiring at age 33 with an overall record of 42-7-1, Norton went on to act in motion pictures until suffering an auto accident which resulted in temporary brain and permanent physical damage.

Norton is a member of the International Boxing Hall Of Fame, and his son, Ken Norton Jr, played American football in the NFL.