Marcelino Solis (July 19, 1930 – June 15, 2001) was a Mexican professional baseball player, a left-handed pitcher who appeared in 15 Major League games in 1958 for the Chicago Cubs. The native of Real de Catorce, San Luis Potosí, stood 6 feet 1 inch (1.85 m) tall and weighed 185 pounds (84 kg). In 52 Major League innings pitched, Solis surrendered 74 hits and 20 bases on balls; he struck out 15. He resumed his minor league career in 1959.