Mine That Bird (foaled May 10, 2006) is an American thoroughbred racehorse who had a racing career in both Canada and the United States from 2008 to 2010. He is best known for pulling off a monumental upset (at 50-to-1 odds) by winning the Kentucky Derby in 2009. He became one of only nine geldings to win the Kentucky Derby and the second gelding to win the race since 1929.