Sam Hill (born 21 July 1985 in Viveash, WA) is an Australian professional downhill mountain biker. He was two time consecutive UCI World Downhill Champion during years 2006-2007 for Iron Horse racing team. He won the 2010 world championships in Mont Saint Anne, riding for the Monster Energy Specialized team on a Specialized Demo 8 II. He also won the 2007 and 2009 UCI Elite Mens Downhill World Cup (Overall).