Ubaldo José Heredia Martínez (oo-BAL-do ay-RAY-dah) (born May 4, 1956 in Ciudad Bolívar, Venezuela) is a former Major League Baseball right-handed starting pitcher who played for the Montreal Expos in 1987.
Heredia compiled a 0–1 record with six strikeouts and a 5.40 of ERA in 10 innings.