Seamie Heffernan

James Anthony "Seamie" Heffernan (born 17 July 1972) is an Irish flat racing jockey associated for most of his career with the stable of horse racing trainer Aidan O'Brien. From a family with no racing connections, Heffernan was introduced to the sport when he took a summer holiday job with the National Hunt trainer Arthur Moore. He began his racing career as an apprentice jockey for P J Finn and rode his first winner on 10 August 1988 at the age of sixteen. When Finn retired he moved to the yard of Jim Bolger and shared the Irish champion apprentices title in 1994.

Heffernan remained at Ballydoyle for nearly three decades and rode his first Group One winner on Beckett in the 2000 National Stakes and his first Classic winner on Imagine in the Irish 1,000 Guineas in 2001.