Durward Knowles 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 along with Sloane Elmo Farrington. He had previously competed for the United Kingdom in the 1948 Olympics, finishing in 4th place in the Star class again with Sloane Elmo Farrington. Representing The Bahamas, Knowles won gold in the 1959 Pan American Games star class (with Farrington). He is one of only five athletes who have competed in the Olympics over a span of 40 years.