Alvin Lewis, also known as Al Lewis, (November 12, 1942 – January 31, 2018) was an American professional boxer who fought in the heavyweight division under the alias "Al "Blue" Lewis". Lewis was a long-term sparring partner of Muhammad Ali and is mentioned in Ali's autobiography. He was well-known as a powerful gym adversary. He also sparred with, among others, George Foreman before the champion's match with Ken Norton.