| Saint Quiriacus | |
| Death Date: | 235 |
| Feast Day: | 23 August |
| Venerated In: | Roman Catholic Church |
| Titles: | Martyr and Bishop of Ostia |
| Canonized Date: | Pre-congregation |
Quiriacus was Bishop of Ostia, and suffered martyrdom during the reign of Emperor Severus Alexander. Quiriacus was martyred along with Maximus, his priest, and Archelaus, a deacon.[1]