Carlos Barredo Llamazales (born 5 June 1981, in Oviedo, Asturias) is a Spanish former road racing cyclist, who competed as a professional between 2004 and 2012. He was issued a suspension for the first two months of the 2011 season in response to a fight with Rui Costa after a 2010 Tour de France stage, with Barredo claiming that Costa had ridden dangerously in the final stages of the race, but later apologising for his actions.^[1]

Barredo was suspended by Rabobank on 18 October 2012 after the UCI opened proceedings for apparent violations of the Anti-Doping Rules on the basis of the information provided by the blood profile in his biological passport.^[2] In December of that year, he told Spanish newspaper El Pais that he was retiring from cycling and that he was starting a new job in a café in Madrid.^[3] UCI gave him a two-year sanction as a result of abnormalities in his biological passport, and he was disqualified from 26 October 2007 to 24 September 2011.^[4]