Aidan O'Brien

Aidan O'Brien
O'Brien at the 2012 Epsom Derby.
OccupationTrainer
Born (1969-10-16) 16 October 1969 (age 55)
County Wexford, Ireland
Honours
British Champions Series Hall of Fame (2024)
Significant horses
Istabraq, Giant's Causeway, Mozart, Imagine, Galileo, Johannesburg, Hawk Wing, Rock of Gibraltar, High Chaparral, Powerscourt, Oratorio, Yeats, Scorpion, George Washington, Alexandrova, Dylan Thomas, Peeping Fawn, Duke of Marmalade, Henrythenavigator, Mastercraftsman, Fame and Glory, Rip Van Winkle, Lillie Langtry, St Nicholas Abbey, Cape Blanco, Misty for Me, Roderic O'Connor, So You Think, Treasure Beach, Camelot, Ruler of the World, Australia, Gleneagles, Qualify, Minding, Found, Highland Reel, Churchill, Winter, Magical, Auguste Rodin, Paddington

Aidan Patrick O'Brien (born 16 October 1969 in County Wexford, Ireland)[1] is an Irish horse racing trainer. Since 1996, he has been the private trainer at Ballydoyle Stables near Rosegreen in County Tipperary for John Magnier and his Coolmore Stud associates. He is widely acknowledged as one of the greatest horse racing trainers of all time.