Marcelino Pons López (September 23, 1943 – November 29, 2001) was a Cuban professional baseball player. He played in Major League Baseball as a left-handed pitcher in 1963 and from 1965 through 1972, most notably as a member of the Baltimore Orioles dynasty that won two American League pennants and one World Series championship. He also played for the Milwaukee Brewers and the Cleveland Indians.