Diane Crump is an American jockey and horse trainer. Crump was the first woman to ride in a pari-mutuel race in the United States; her participation in the event was so contested that she required a full police escort through the crowds at the Hialeah Park Race Track. She went on to be the first woman to ride in the Kentucky Derby. Crump briefly retired 1985 to become a horse trainer, but returned to riding and was a professional jockey until retiring in 1999. She now runs an equine sales business.