Andrew Thomas "Tommy" Doyle (September 23, 1917 – July 22, 1989) was an American Thoroughbred racehorse trainer known for his success with young horses. He was reported as both "Tommy Doyle" and "A. T. Doyle." A native of Dublin, Ireland, Tommy Doyle came from a family with a long history in the sport of horse racing. He emigrated to the United States in 1951 and made his way to California where he eventually owned a ranch in Bradbury on which he raised and trained horses. Tommy Doyle died from Alzheimer's disease at age 71 in 1989.