Leonel Marshall Sr.
Leonel Marshall Steward Sr., more commonly known as Leonel Marshall Sr., is a Cuban former volleyball player who competed in the 1976 Summer Olympics in Montreal and the 1980 Summer Olympics in Moscow.
In 1976, Marshall was part of the Cuban team that won the bronze medal in the Olympic tournament. He played all six matches. Four years later, Marshall finished seventh with the Cuban team in the 1980 Olympic tournament. He played all six matches again.
Marshall participated in the 1975 Pan American Games in Mexico City and the 1979 Pan American Games in Caguas, winning a gold medal in each event.