February 14 in Eastern Orthodox liturgical calendars is a feast day and a day of commemoration of saints and martyrs. Although some Orthodox churches use the Revised Julian Calendar and others use the traditional Julian calendar, the fixed commemorations for their respective February 14 are broadly the same, no matter which calendar is used.
Saint Peter II, Patriarch of Alexandria (380)
Venerable Maron of Syria, hermit of Cyrrhus (c. 433)
Venerable Auxentius of Bithynia, monastic (c. 470)
Venerable Abraham of Charres, Bishop of Charres in Mesopotamia (5th century)
Venerable Cyril, Equal-to-the-Apostles, Teacher of the Slavs (869)
Hieromartyr Philemon of Gaza, Bishop of Gaza (10th century).
Saint Eleuchadius, a Greek, converted by St Apollinaris of Ravenna in Italy, and succeeded St Adheritus as third Bishop of that city (112)
Martyrs Vitalis, Felicula and Zeno, early martyrs in Rome.
Saint Valentine the Presbyter of Rome, under Claudius II (c. 270) (see also: July 6, July 30)
Hieromartyr Valentine, Bishop of Interamna Nahars, Terni, in Italy (c. 273) (see also: July 30; April 24)
Martyrs Proculus, Ephebus and Apollonius, disciples of Hieromartyr Valentine, Bishop of Interamna, Terni, in Italy (c. 273)
Martyrs Bassus, Anthony, and Protolicus, at Alexandria.
Martyr Agatho, Priest, and Companions, at Alexandria.
Saint Nostrianus, Bishop of Naples in Italy and a valiant opponent of Arianism and Pelagianism (c. 450)
Saint Theodosius, Bishop of Vaison in France and predecessor of St Quinidius (554)
Saint Conran, a bishop of the Orkney Islands.
Saint Antoninus of Sorrento, a monk in one of the daughter monasteries of Monte Cassino in Italy, became Abbot of St Agrippinus (830)