Maternus

Maternus or Matiernus may refer to:


 * Marcus Cornelius Nigrinus Curiatius Maternus (c. 40–c. 97), Roman senator and suffect consul of AD 83
 * Curiatius Maternus, who appears in Tacitus's Dialogus de oratoribus; he may be the same person as the consul of 83
 * Julius Maternus or Matiernus (fl. 87–90), Roman explorer of western Africa
 * Maternus (rebel) (fl. 187), rebel leader during the reign of Commodus
 * Maternus of Cologne (285–315; in legend, fl. 1st century), bishop of Trier and Cologne and Catholic saint
 * Maternus (bishop of Milan) (fl. 316–328), Archbishop of Milan and Catholic saint
 * Julius Firmicus Maternus (fl. 334–346), Latin writer, astrologer, and Christian apologist
 * Maternus Cynegius (fl. 381–388), praetorian prefect and consul