December 25 – Eastern Orthodox liturgical calendar – December 27
All fixed commemorations below are observed on January 8 by Orthodox Churches on the Old Calendar.
For December 26th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 13.
Second Day of the Feast of the Nativity.
Synaxis of the Most Holy Theotokos.
Commemoration of the flight into Egypt of the Most Blessed Theotokos.
Commemoration of Saint Joseph, King David, and Saint James, brother of the Lord.
Saint Archelaus, Bishop of Harran (Haran) in Northern Mesopotamia (c. 280)
Saint Zeno (Zenon), Bishop of Maiuma (the port of Gaza) in Palestine (4th century)
Venerable Evarestus (Evaristus), Monk of the Studion Monastery (825)
Hieromartyr Euthymius the Confessor, Bishop of Sardis (840)
Venerable Constantine, Monk of Synnada, the former Jew (9th century)
Saint Dionysius, Pope of Rome (268)
Saint Marinus, the son of a senator in Rome, he was martyred by beheading under Numerian (283)
Saint Zosimus, a Greek Pope of Rome (418)
Saint Tathai (Tathan, Tathaeus, Athaeus), Abbot of Llantathan (early 6th century)
Saint Jarlath, first Bishop of Tuam, founder of the monastery of Cluain Fois, near Tuam, Ireland (c. 540)
Saint Theodore the Sacrist, a holy man and contemporary of Saint Gregory the Great in Rome (6th century)