| Honorific Prefix: | Saint |
| Glyceria | |
| Death Date: | 177 |
| Feast Day: | 13 May |
| Venerated In: | Roman Catholic Church, Eastern Orthodox Church |
| Birth Place: | Roman Empire |
| Death Place: | Perinthus, Propontis (modern-day Marmara Ereğlisi, Tekirdağ, Turkey) |
| Titles: | Virgin and martyr |
| Canonized Date: | pre-congregation |
Saint Glyceria (Greek, Modern (1453-);: Γλυκερία; died ca. 177 in Perinthus, Propontis) was a Roman virgin of the early church.
According to Christian tradition, she was forced to pay tribute to a stone statue of Jupiter but it was destroyed while she stood before it. The virgin was imprisoned for this, then sentenced to be torn apart by wild animals. She, however, was not torn apart. Before the animals could render her any harm, Glyceria died a virgin martyr in Heraclea. Her relics reputedly poured forth the substance known as the Oil of Saints, and her name means "sweetness".
She is primarily recognized as a saint in Eastern Christianity and the Roman Catholic Church. Her feast day is 13 May in Eastern Orthodox liturgics.