Marcellinus or Maredinus was a Hungarian prelate in the first half of the 12th century, who served as Bishop of Vác from around 1138 to 1139, during the reign of Béla II of Hungary.

Career Marcellinus became bishop sometime after 1113, when his last known predecessor Marcellus is mentioned. His name appears among the testimonies in that document, in which King Béla II listed the estates and privileges of the Dömös Chapter in 1138. Marcellinus is last mentioned as bishop in 1139. His next known successor, Hippolytus first appears in the dignity only in 1156.

References

Sources