Duke of Marmalade (foaled 12 March 2004) is a retired Irish Thoroughbred racehorse and active sire. He is best known for winning five consecutive Group One races in 2008, for which he was named European Champion Older Horse. He currently stands as a stallion for Coolmore Stud, being moved between stud farms in Ireland and Australia (a practice known as shuttling).Duke of Marmalade won his first two races as a two-year-old in June 2006.