Roberto Cesar Pena
- Bats Right, Throws Right
- Height 5' 8", Weight 175 lb.
- Debut April 12, 1965
- Final Game September 30, 1971
- Born April 17, 1937 in Santo Domingo, Distrito Nacional, D.R.
- Died July 23, 1982 in Santiago, Santiago, D.R.
Roberto Pena, playing for the Chicago Cubs in 1965, became the last player to hit home runs in his first two big league games until Joe Lefebvre did so in 1980. He had been on the Dominican national team in the 1959 Pan American Games.