Marcos-Antonio Serrano Rodríguez (born 8 September 1972 in Redondela, Province of Pontevedra) is a professional cyclist from Galicia, Spain. Turning professional in 1993, he joined the Kelme team and then in 1999 the lottery-sponsored Organización Nacional de Ciegos Españoles (ONCE). He remained part of the same team when in 2004 sponsorship and name passed to Liberty Seguros-Würth and in 2006, as the Astana-Würth Team.