| Saints Celsus and Marcionilla | |
| Death Date: | 302 |
| Feast Day: | 9 January Roman Catholic, 8 January Eastern Orthodox |
| Venerated In: | Roman Catholic Church Eastern Orthodox Church |
| Death Place: | Antioch |
| Titles: | Martyrs |
| Canonized Date: | Pre-Congregation |
Celsus and Marcionilla (Greek: Κέλσος & Μαρκιονίλλα) were early Christian martyrs. Marcionilla was a matron,[1] and Celsus was her little son. Together with Anastasius, Anthony, Julian and others they suffered martyrdom in Antioch during the Diocletianic Persecution.[2]