Bertrand Milbourne Clark (29 April 1894 – 30 March 1958) was an all-round, amateur Jamaican sportsman, who excelled in golf, cricket and tennis, and was the first black person to compete at Wimbledon, in 1924.

Clark was born on 29 April 1894. He was descended from Thomas Milbourne Clark, his great grandfather, and Eleanor Fitzgerald, who married in 1824. Thomas was later described as "a free person of colour". Bertrand was the second son of Clementina Louise, née Sanguinetti, and Enos Edgar Clark, a dentist in Kingston.

He was educated at Kingston High School and then Jamaica College.

Clark was a sporting polymath, and competed as an amateur. He represented Jamaica College at high jump at the first Inter-Secondary Schools Championship Sports at Sabina Park in 1910, where he came first. He subsequently became known in Jamaica as a top golfer.

He played for Melbourne Cricket Club alongside his brother Ronald. He also played soccer.

He served as Secretary of the Jamaica Golf Association from 1941 to 1951.

In seven consecutive years he was the All Jamaica tennis champion. In all, he won seven singles, seven doubles and five mixed titles at the championships. His male doubles partners were Charlie Brandon, H. V. Alexander, H. A. Lake and O. V. A. Lindo; and in mixed doubles Mrs William Wilson, Mrs C. C. Calder (later Mrs. Cy Elkins), Edna DaCosta and Olive Wilson.

He beat the American Tally Holmes to take the American Tennis Association title, for African American players, in 1920.