Archie Moore was an American professional boxer and the longest reigning World Light Heavyweight Champion of all time (1952 – 1962). He had one of the longest professional careers in the history of the sport, competing from 1935 to 1963. Nicknamed "the Mongoose", and then "the Old Mongoose" in the latter half of his career, Moore was a highly strategic and defensive boxer. As of September 2025, BoxRec ranks Moore as the greatest light heavyweight boxer of all time.
Moore was named the greatest light heavyweight of all time by the Associated Press in 1999, and his 132 career knockouts remain the all-time record. He also ranks fourth on The Ring's list of "100 greatest punchers of all time". Moore was also a trainer for a short time after retirement, training Muhammad Ali, George Foreman, Bob Foster, Eddie Mustafa Muhammad, Earnie Shavers and James Tillis.
Born in Benoit, Mississippi, Moore was raised in St. Louis, Missouri, and grew up in poverty. Moore was denied a shot at the world title for 15 years, and spent many of those years fighting on the road with little to show for it.