July 12 – Eastern Orthodox Church calendar - July 14

All fixed commemorations below are celebrated on July 26 by Old Calendar.^{[note 1]}

For July 13th, Orthodox Churches on the Old Calendar commemorate the Saints listed on June 30.

• Synaxis of the Holy Archangel Gabriel.^[1][2][3][4]
• Martyr Serapion, under Severus (c. 205)^{[1][5][6][7][note 2]} (see also: July 12)
• Martyr Marcian of Iconium (258)^[1][5][7][9] (see also: July 11)
• Venerable Abbess Sarah of Scetis (370)^{[1][3][5][10][11][12]}
• Martyr Golinduc, in holy baptism Mary, of Persia (591)^{[3][13][14][15][16]} (see also: July 12)
• Venerable Stephen the Sabaite (Stephen the Hymnographer) (794 or 807)^{[1][3][7][17][18]}

• Saint Julian of Le Mans, Bishop of Cenomanis (Le Mans) in (Gaul) (1st or 3rd century)^{[1][15][19][20][21][note 3]} (see also: January 27 - West)
• Saint Dogfan (Doewan), martyred by heathen in Dyfed in Wales where a church was dedicated to him (5th century)^[21]
• Saint Just of Penwith, monk, of Cornwall (5th century)^[1][5][22]
• Saints Eugene, Bishop of Carthage, Salutaris, Archdeacon of Carthage, Muritta the Deacon, and Companions, Confessors (505)^{[15][21][23][note 4][note 5]}
• Venerable Abbess Mildred of Thanet, Abbess of Minster-in-Thanet Convent (c. 733)^{[1][5][15][21][24][25]} (see also: February 20)
• Saint Turiaf of Dol (Turiav, Turiavus), successor of St. Samson as Bishop of Dol in Brittany (c. 750)^{[21][26][note 6]}

• The holy Five Martyrs of Alamannia who suffered in Cyprus:

• Heliophotus, Epaphrodites, Ammon, Auxouthenius, and Euthenius, monks, of Cyprus (12th century)^{[1][3][14][15][27][note 7]}

• Saint Onesiphorus, born in Constantinople, ascetic in Cyprus and Wonderworker.^[14][28]

• Icon of the Most Holy Theotokos "Axion Estin" ("It is Truly Meet").^[29] (see also: June 11)
• Translation of the relics (early 11th century) of St. Juthwara of Cornwal (6th century) to Sherborne Abbey.^{[5][note 8]}
• Synaxis of the Saints of Hilandar, Mt. Athos.^[1][5]
• Repose of Constantine Oprisan of Jilava, Romania (1959)^{[1][note 9]}

• Holy Archangel Gabriel.
• St. Julian of Le Mans.
• St. Dogfan.
• Venerable Abbess Mildred of Thanet.