Domninus may refer to:

• Saint Domninus or Saint Domnius, also Saint Duje, 3rd-century Syrian martyr-bishop, patron of the city of Split
• Saint Domninus of Fidenza (San Donnino di Fidenza) (d. 304)
• Saint Domninus of Parma (early 4th century), martyr under Diocletian
• Saint Domninus of Thessalonica (early 4th century), martyr (October 1, Eastern Orthodox liturgics)
• Saint Domninus of Digne, otherwise Saint Domnin (d. 379)
• Saint Domninus of Grenoble (d. 386), first bishop of Grenoble
• Saint Domninus of Vienne (d. 536), bishop of Vienne

• Domninus of Larissa, 5th-century Hellenistic Syrian Jewish mathematician
• Domninus of Antioch (Domnus), patriarch of Antioch (see List of Patriarchs of Antioch)
• Domnus II of Antioch
• Roman figure in the time of Petronius Maximus
• Man whom Serapion of Antioch addresses in one of his works

This page or section lists people that share the same given name.
If an internal link led you here, you may wish to change that link to point directly to the intended article.