Saint Marcellinus may refer to:

  • Pope Marcellinus (died 304), bishop of Rome 296–304 and martyr
  • Marcellinus and Peter (died 304), d. 304
  • Marcellinus of Carthage (died 413), secretary of state to Honorius and martyr
  • Marcellinus of Gaul, feast day April 20
  • See Narcissus, Argeus, and Marcellinus for Marcellinus (died 320), soldier and martyr, d. 340
  • St. Marcellinus Secondary School, Mississauga, Ontario

See also

  • Marcellinus (disambiguation)