David Cotey (born February 18, 1948) is a Canadian Thoroughbred racehorse trainer. Near the beginning of the 1990s, he formed the nom de course Dominion Bloodstock to purchase and race Thoroughbreds with partners Hugh Galbraith and Derek Ball. In 2001, he began his training career, earning his first win on May 25 then a few months later the Manitoba Derby at Assiniboia Downs in Winnipeg, Manitoba. In 2002, he won the Canadian Derby at Northlands Park in Edmonton, Alberta. Cotey was born in Toronto, Ontario, Canada.