Youmzain (foaled February 20, 2003 in Ireland) is a Thoroughbred racehorse. Trained by Mick Channon, he won Preis von Europa and Grand Prix de Saint-Cloud group 1 races in 2008. Most notably, he is three-time runner-up in Prix de l'Arc de Triomphe; in 2007 behind Dylan Thomas, in 2008 behind Zarkava, and in 2009 behind Sea The Stars.