Sir Durward Randolph Knowles (2 November 1917 – 24 February 2018) was a sailor and Olympic champion from the Bahamas. He won the gold medal in the Star class at the 1964 Summer Olympics in Tokyo, together with Cecil Cooke. He won the bronze medal in the same class at the 1956 Summer Olympics in Melbourne. He had previously competed for the United Kingdom in the 1948 Olympics finishing in 4th place in the Star class together with Sloane Elmo Farrington. Representing the Bahamas, Knowles also won gold in the 1959 Pan American Games star class (with Farrington).