| Saint Romanus Ostiarius | |
| Death Date: | c. 258 |
| Feast Day: | August 9 |
| Venerated In: | Catholic Church |
| Titles: | Martyr |
Saint Romanus Ostiarius is a saint of the Catholic Church. His legend states that he was a soldier who converted to Christianity by the example of Saint Lawrence, who baptized Romanus after the soldier was imprisoned. He became a church ostiary in Rome and was later martyred.