Sea Moon (foaled 6 March 2008) is a British-bred Thoroughbred racehorse. He was initially trained in Britain and as a three-year-old in 2011 he won the Great Voltigeur Stakes, was runner-up in the Breeders' Cup Turf and finished third in the St Leger. In 2012 he won the Hardwicke Stakes at Royal Ascot. In 2013 he was sold and sent to be trained in Australia where he won the Herbert Power Stakes.