December 31 (Eastern Orthodox liturgics)

December 30 - Eastern Orthodox liturgical calendar - January 1

All fixed commemorations below are observed on January 13 by Eastern Orthodox Churches on the Old Calendar.

For December 31st, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 18.

Feasts

 * Apodosis of the Nativity of Christ.

Saints

 * Saint Abgar V, king of Osroene (c. 50)
 * Holy Ten Virgin-martyrs of Nicomedia (c. 286 - 305)
 * Martyr Olympiodora, by fire.
 * Martyr Busiris, martyred by women with knitting needles.
 * Martyr Nemi (Nemo), by the sword.
 * Saint Gaudentius.
 * Saint Salamin
 * Saint Irenaeus
 * Saint Martina
 * Saint Hermes of Bononia (4th century)
 * Hieromartyr Zoticus the Priest, of Constantinople, Guardian of Orphans (c. 340)  (see also December 30)
 * Saint Anysius, Bishop of Thessaloniki (c. 407) (see also December 30)
 * Venerable Melania the Younger, Nun of Rome (439)
 * Venerable Gelasius, Monk (Abba), of Palestine.
 * Venerable Gaius.
 * Venerable Sabiana, Abbess of Samtskhe (11th century)

Pre-Schism Western saints

 * Saint Columba of Sens (273)
 * Martyrs of Catania:
 * Stephen, Pontian, Attalus, Fabian, Cornelius, Sextus, Flos, Quintian, Minervinus and Simplician, early martyrs in Catania in Sicily.
 * Martyrs Donata, Paulina, Rustica (Rogata), Nominanda (Dominanda), Serotina, Hilaria and Companions.
 * Hieromartyrs Sabinian and Potentian (c. 303)
 * Saint Silvester I, Pope of Rome (335)
 * Saint Valerius Pinianus (Apinianus), husband of Melania the Younger (432)
 * Saint Barbatian, Priest and Confessor, at Ravenna (5th century)
 * Saint Marius Aventicensis, bishop of Aventicum (596)
 * Saint Franquila Myrrh-streaming, first abbot of Monastery of San Salvador de Celanova (10th-century)
 * Saint Peter of Subiaco (1003)

Post-Schism Orthodox saints

 * Blessed Theophylactus of Ohrid, Archbishop of Ochrid (c. 1126)
 * Saint George the Wonderworker, "the stabbed". (14th century)
 * Saint Peter (Mogila), Metropolitan of Kiev, Galicia and all Rus, Exarch of the Ecumenical Patriarchate (1646)     (see also: December 15 - Glorification)
 * Venerable Cyriacus of Bisericani monastery, Romania (1660)
 * Venerable Cyriacus of Tazlu, Romania (1660)
 * Saint Paisios of Mount Athos (1994)

New martyrs and confessors

 * New Hieromartyr Michael Berezin, Priest (1937)
 * Martyr Peter Troitsky (1938)
 * New Hiero-Confessor Dositheus (Vasich), Metropolitan of Zagreb (1945)