Kenneth Howard Norton Sr. (born August 9, 1943, Jacksonville, Illinois) is a former multi-time world champion heavyweight boxer.
Norton was an outstanding athlete at Jacksonville High School. His track coach entered him in eight events and Ken placed first in all. As a result, the "Ken Norton Rule" was instituted in Illinois high school sports which limits participation of an athlete to a maximum of three track and field events. After graduating from high school, Norton went to Northeast Missouri State University (now Truman State University) on a football scholarship.
Norton started boxing when he was in the United States Marine Corps from 1963-1967, compiling a 24-2 record en route to three All-Marine Heavyweight titles. Following the National AAU finals in 1967, he turned professional.