Marcelo Quiñonez (born March 24, 1949 in Surquillo) is a former boxer from Peru. He was one of South America's top ranked middleweights during the 1970s.
Quiñones began his professional career as a boxer on September, 27 1971, winning Carlos Bazán by knockout in Lima.
He added the South American middleweight title with a knockout in twelve rounds victory over Luiz Fabre, on August 9 in Lima.
Quiñones won 31 bouts, losing 8 and drawing in 1, with 18 wins by knockout.