Rafael Antonio Niño Munévar (born December 11, 1949 in Cucaita, Boyaca, Colombia) is a retired Colombian road racing cyclist.
He won the Vuelta a Colombia in 1970.
After that he became a professional cyclist from 1973 to 1974.
He participated in the Giro d'Italia.
After one year as a professional he returned to Colombia and set up the Banco Cafetero team of which he was the undisputed leader.
With this strong team he dominated the Vuelta a Colombia and the Clásico RCN during the 1970s.
He earned the nickname El Niño de Cucaita.
He won a record six editions of the Vuelta a Colombia.
After he retired he became a technical director of the Colombia professional cycling team that disputed the Tour de France during the 1980s, Café de Colombia.