Antipope Ursicinus
| Antipope Ursicinus | |
|---|---|
| Elected | 366 | 
| Papacy began | 366 | 
| Papacy ended | 367 | 
| Predecessor | Roman claimant: Damasus I Liberius Antipapal claimant: Felix II | 
| Successor | Roman claimant: Damasus I Antipapal claimant: Eulalius | 
| Opposed to | Pope Damasus I | 
| Personal details | |
| Died | c. 381 | 
| Denomination | Arianism | 
Ursicinus, also known as Ursinus, was elected pope in a violently contested election in 366 as a rival to Pope Damasus I. He ruled in Rome for several months in 366–367, was afterwards declared antipope, and died after 381.