John E. Hammond (born June 27, 1960 in Bromley, Kent, England) is retired a Thoroughbred horse trainer in France. Based in Chantilly, Oise throughout his training career, which began in 1987, Hammond trained numerous Group One winners including Montjeu and Suave Dancer, both of whom won the Prix de l'Arc de Triomphe, France's most prestigious horse race. Hammond's horses also won important races in Ireland, Great Britain and the United States. Hammond also trained useful European and latterly American-based sprinter, Nuclear Debate. Hammond retired from training at the end of the 2019 season.