January 10 - Eastern Orthodox liturgical calendar - January 12

All fixed commemorations below are observed on January 24 by Eastern Orthodox Churches on the Old Calendar.^{[note 1]}

For January 11th, Orthodox Churches on the Old Calendar commemorate the Saints listed on December 29.

• Afterfeast of the Theophany of Our Lord and Savior Jesus Christ.^[1][2]

• Martyr Mairus (Mairos).^{[3][note 2]}
• Martyrs Peter, Severius and Leucius, at Alexandria.^[5]
• Venerable Theodosius of Antioch, ascetic of Rhosus and Antioch, Wonderworker (412)^[1][6] (see also: February 5 - Greek)
• Venerable Theodosius the Cenobiarch (Theodosius the Great) (529)^{[1][7][8][note 3]}
• Venerable Theodorus, and Venerable Archimandrite Agapius of Apamea in Syria.^[1][9]
• Venerable Vitalis of Gaza (Vitalios), of the monastery of Abba Seridus at Gaza (c. 609 - 620)^[1][10]

• Hieromartyr Hyginus, Pope of Rome (142)^{[1][11][12][note 4]}
• Saint Leucius of Brindisi, venerated as the first Bishop of Brindisi, where he had come as a missionary from Alexandria (180)^[12]
• Hieromartyr Alexander of Fermo, Bishop, martyred under Decius (c. 250)^{[12][note 5]}
• Saints Ethenia and Fidelmia, Princesses, daughters of King Laoghaire in Ireland, veiled as nuns by St Patrick (433)^[12]
• Martyr Salvius, in North Africa, eulogized by St Augustine.^[12]
• Saint Brandan, Abbot, opponent of Pelagianism (5th century)^{[12][note 6]}
• Saint Honorata, nun, sister of St. Epiphanius of Pavia, who ransomed her after she was abducted from the monastery of St. Vincent in Pavia (c. 500)^[12]
• Saint Anastasius of Castel Sant'Elia, Abbot (c. 570)^{[12][note 7][note 8]}
• Saint Boadin the Irish, hermit in Gaul.^[12]
• Saints Paldo, Taso and Tato, three brothers, Abbots of San Vincenzo on the Voltorno (8th century)^{[12][note 9]}

• Venerable Theodosius of Mt. Athos, Metropolitan of Trebizond (1392.)^[1][14][15]
• Venerable Michael of Klopsk, of Klopsk Monastery in Novgorod, Fool-for-Christ and Wonderworker (1456)^[1][16][17]
• New Martyr Nikephoros of Crete, by hanging, for renouncing Islam and confessing his faith in Christ (1832)^[18]
• Saint Joseph the New of Cappadocia (c. 1860)^{[1][19][note 10]}

• Synaxis of the Myriads of Holy Angels (Synaxis of the Myriangelon).^{[22][note 11]}
• Consecration of the Church of St. Stephen in Placidia Palace, Constantinople.^[1][23]
• Chernigov-Eletskaya Icon of the Most Holy Theotokos (1060)^[1][24]
• Repose of Blessed Nun Eupraxia of Teliakov village, Kostroma (1823)^[1][25]

• Venerable Theodosius the Cenobiarch.
• Saint Vitalis of Gaza .
• Hieromartyr Hyginus, Pope of Rome.
• Saint Leucius of Brindisi.
• Interior of the Basilica di Sant'Elia, where Saint Anastasius was Abbot.
• Icon of St. Michael of Klopsk.