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.
Barredo was suspended by 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. In December of that year, he told Spanish newspaper El PaÃÂs that he was retiring from cycling and that he was starting a new job in a café in Madrid. 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.