January 2 - Eastern Orthodox liturgical calendar - January 4

All fixed commemorations below are observed on January 16 by Eastern Orthodox Churches on the Old Calendar.^{[note 1]}

For January 3rd, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 21.

• Forefeast of the Theophany of Our Lord and Savior Jesus Christ.^{[1][note 2]}

• Holy Prophet Malachi (c. 400 BC)^[1][3][4]
• Martyr Peter, in Avlona of Samaria, Palestine (311)^[5]
• Martyr Gordius, at Caesarea in Cappadocia, centurion, by the sword (c. 314)^{[1][6][7][note 3]}
• Venerable Meliton of Beirut (537)^[9]
• Venerable Peter of Atroa (Peter the Standard-Bearer) (837)^[1][10] (see also: September 13, January 1 - Western Rite)
• Venerable Acacius the Wonderworker, of Mount Latros (Latmos), at the Megisti Lavra of the Theotokos of Myrsinon (c. 10th century)^{[11][note 4]}
• Saint Thomais of Lesbos (10th century)^[1][12]

• Hieromartyr Daniel of Padua, a Deacon who helped St Prosdocimus, the first Bishop of Padua in Italy (168)^[8][13]
• Saint Anterus, Pope of Rome (236)^{[13][note 5]} ( see also August 5 - Eastern Calendar)
• Hieromartyr Florentius of Vienne, a martyred Bishop of Vienne in France (3rd century)^{[13][note 6]}
• Venerable Genevieve of Paris (502)^{[1][8][13][14][15][16][17][note 7]}
• Saint Fintan of Doon, a disciple of St Comgall at Bangor in Ireland; he is honoured as the patron-saint of Doon in Limerick where his holy well still exists (6th century)^[13]
• Saint Finlugh of Derry (Finlag), a brother of St Fintan of Doon, he went to Scotland where he became one of St Columba's disciples; returning to Ireland, he became abbot of a monastery in County Londonderry (6th century)^[13]
• Saint Blitmund, a monk at Bobbio Abbey in Italy (c. 660)^{[13][note 8]}
• Saint Bertilia of Mareuil, anchoress (c. 687)^{[13][note 9]}
• Saint Findlugan of Islay (Finlaggan, Fionn Lugain) (7th century)^{[1][note 10]}
• Saint Wenog, an early saint in Wales.^{[13][note 11]}

• Righteous Euthymius (Takaishvili) the Man of God, of Tbilisi (1953)^{[1][20][note 12]}

• Repose of Schema-Hierodeacon Elder Panteleimon, founder of Kostychev Convent (1884)^[1][21]

• Holy Prophet Malachi.
• Saint Anterus, Pope of Rome.
• Venerable Genevieve of Paris.
• Righteous Ekvtime Takaishvili the Man of God, of Tbilisi.