December 25 – Eastern Orthodox liturgical calendar – December 27

All fixed commemorations below are observed on January 8 by Orthodox Churches on the Old Calendar.^{[note 1]}

For December 26th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 13.

Feasts

• Second Day of the Feast of the Nativity.^{[1][2][note 2]}
• Synaxis of the Most Holy Theotokos.^{[1][3][4][note 3]}
• Commemoration of the Flight into Egypt of the Most Blessed Theotokos.^[5]
• Commemoration of Saint Joseph, King David and Saint James.^[6]

Saints

• Saint Archelaus, Bishop of Harran in Northern Mesopotamia (c. 280)^{[1][7][note 4]}
• Saint Zeno (Zenon), Bishop of Maiuma (the port of Gaza), in Palestine (4th century)^{[1][7][note 5]}
• Venerable Evaristus (Evarestos), Monk of the Studion Monastery (825)^[1][9][10]
• Hieromartyr Euthymius of Sardis (Euthymios the Confessor), Bishop of Sardis (840)^{[1][11][12][13][note 6]}
• Venerable Constantine, Monk of Synnada, the former Jew (9th century)^[1][14][15]

Pre-Schism Western saints

• Saint Dionysius, Pope of Rome (268)^{[16][note 7]}
• Saint Marinus, the son of a senator in Rome, he was martyred by beheading under Numerian (283)^{[16][note 8]}
• Saint Zosimus, a Greek Pope of Rome (418)^[16]
• Saint Tathai (Tathan, Tathaeus, Athaeus), Abbot of Llantathan (early 6th century)^{[7][16][note 9][note 10]}
• Saint Jarlath, first Bishop of Tuam, founder of the monastery of Cluain Fois, near Tuam (Ireland) (c. 540)^[1]
• Saint Theodore the Sacrist, a holy man and contemporary of St Gregory the Great in Rome (6th century)^{[16][note 11]}
• Saint Amaethlu (Maethlu); a church founded by him in the village of Llanfaethlu in Anglesey, Wales, is named after him (6th century)^[16]

Post-Schism Orthodox saints

• Saint Nicodemus of Tismana, Romania (1406)^[1]
• New Hieromartyr Constantius the Russian, Priest at Constantinople, by beheading (1743)^[1][18]

New martyrs and confessors

• New Hieromartyrs Alexander and Demetrius, Priests (1918)^[7][13]
• New Hieromartyrs Nicholas, Michael, and Nicholas, Priests, and Michael, Deacon (1930)^[7][13]
• New Hieromartyr Leonidas (Antoshchenko), Bishop of Mariisk (1937)^[1][13]
• New Hieromartyr Basil (Mazurenko), Hieromonk (1937)^[1][13]
• Hieromartyr Alexander, Priest (1937)^[7][13]
• New Martyr Augusta (Zashchuk), Schema-Nun (1937)^[1]
• Virgin-martyrs Anthisa and Makaria (1937)^[7][13]
• New Hieromartyr Andrew, Bishop of Ufa (1937)^[7][19]
• New Martyr, Valentina, (1937)^[7][19]
• Venernable New Hieromartyr Isaac II (Bobrikov), Archimandrite of Optina Monastery (1938)^{[1][7][13][19][20][note 12]}
• New Hieromartyr Gregory, Priest (1938)^[7][13]
• Virgin-martyrs Augusta and Mary (1938)^[7][13]
• Martyr Agrippina (1938)^[7][13]

Other commemorations

• Repose of Abbot Barlaam of Valaam and Optina Monasteries (1849)^[1]
• Repose of Archimandrite Irenarchus (Rosetti) of Mt. Tabor (1859)^[1]
• Repose of Elder Serapheim Savvaitis, Hegumen of the Holy Lavra of Saint Sabbas the Sanctified (2003)^{[21][note 13]}

Icons

• Icon of the "Mother of God of "Vilna" ("Vilen-Ostrabramsk", "Our Lady of the Gate of Dawn").^[22][23]
• Icon of the Mother of God "the Three Joys".^{[19][24][25][note 14]}
• Icon of the Mother of God "Merciful" (Greek: Eleousa).^{[19][26][note 15]}
• Icon of the Mother of God "the Blessed Womb" or "Barlovsk" (1392)^{[19][27][note 16]}
• Icon of the Mother of God "Baibuzsk" (Baibuskaya) (1852)^{[7][19][note 17]}

Icon gallery

• 
  Synaxis of the Theotokos
  (Kirillo-Belozersk Monastery, 15th–16th centuries)
• 
  The Flight into Egypt.
  (Saint Catherine's Monastery, Mount Sinai)
• 
  Ukrainian icon of the Flight into Egypt; the bottom section shows the idols of Egypt miraculously falling down before Jesus and being smashed (17th century).
• 
  Pope Dionysius (259–268).
  (Fresco in Sistine Chapel, Vatican)
• 
  Pope Zosimus.
• 
  Stained glass window depicting Saint Jarlath (1961).
• 
  St. Nicodemus of Tismana, Romania.
• 
  Icon of the "Mother of God of "Vilna"
  (Our Lady of the Gate of Dawn, Vilnius)
• 
  Icon of the Mother of God "Merciful".
  (Mosaic icon from Kykkos Monastery, Cyprus).
• 
  Icon of the Mother of God "the Blessed Womb ^[ru]" or "Barlovsk" (1392).