Saint Glyceria (died ca. 177, Heraclea, Propontis) — early Christian saint, Roman virgin, who suffered as a martyr for her faith in Christ in the II Century, during the time of a persecution against Christians under the emperor Antoninus (138-161). She is honored on May 13 (Easter Orthodox liturgics). She is primarily recognized as an Eastern Christian Saint, and has fallen out of popularity as a Catholic Saint.