September 4 - Eastern Orthodox liturgical calendar - September 6

All fixed commemorations below celebrated on September 18 by Orthodox Churches on the Old Calendar.^{[note 1]}

For September 5th, Orthodox Churches on the Old Calendar commemorate the Saints listed on August 23.

• Holy Prophet Zachariah and Righteous Elizabeth, parents of St. John the Forerunner (1st century)^{[1][2][3][4][note 2]} (see also: June 24)
• Martyrs Thathuil (Thiphael) and his sister Bebaia (Thivea) of Edessa (98-138)^[1][5][6] (see also: September 4; January 29)
• Martyr Sarbelus of Edessa (98-138)^[5][7]
• Virgin-martyr Rhais of Alexandria (Iraida, Raissa, Rose) (c. 308)^[1][5][8] (see also: September 23)
• Martyrs Juventinus and Maximinus, soldiers, at Antioch (361-363)^[1][5][9] (see also: October 9, October 12)
• Martyrs Urban, Theodore, Medimnus and 77 Priests and Deacons, at Nicomedia, under Valens (370)^{[1][3][10][11][note 3]}
• Hieromartyr Abdas (Abdias, Obadiah), Bishop of Hormidz-Ardashir, Persia, and Martyrs Hormizd and Sunin (c. 420)^{[1][3][5][13][14]} (see also: March 31; May 16)

• Saint Herculanus, a martyr in Porto near Rome, probably under Marcus Aurelius (c. 180)^[12][15]
• Saints Quintius, Arcontius and Donatus, martyrs venerated in Capua and elsewhere in the south of Italy.^[12][15]
• Saint Obdulia, a holy virgin venerated in Toledo in Spain.^[12][15]
• Saint Genebald of Laon, Bishop of Laon in France and a relative of St Remigius (c. 555)^{[15][note 4]}
• Saint Victorinus, Bishop of Como in Italy and an ardent opponent of Arianism (644)^{[15][note 5]}
• Saint Bertin, Abbot of Sithin (afterwards called Abbey of Saint Bertin) (c. 709)^{[15][16][note 6][note 7]}

• Martyrdom of the Holy passion-bearer Gleb of Russia, in holy baptism David (1015)^{[1][5][17][note 8]}
• Martyrdom of Venerable Athanasius of Brest, Abbot, of Brest, by the Latins (1648)^{[1][5][19][20][21][note 9]}

• Appearance of Apostle Peter to Emperor Justinian at Athyra (Thrace), near Constantinople (6th century)^{[1][5][27][note 12]}
• Orsha icon of the Theotokos (1631)^[23][28][29] (see also: July 20)
• Uncovering of the relics (2001) of Archimandrite Alexander Urodov (1961)^[23][30][31]
• Repose of Priest Hilarion Felea of Romania (1961)^[1]

• Holy Prophet Zachariah and Righteous Elizabeth, parents of St. John the Forerunner.
• Annunciation to Zachariah.
• Martyrdom of Holy Prophet Zachariah.^{[note 13]}
• Martyrs Sarbelus (Thathuil) and his sister Bebaia, of Edessa.
• Hieromartyr Abdas (Abdias, Obadiah), Bishop of Hormidz-Ardashir, Persia.
• Holy passion-bearers Gleb of Russia.
• Venerable Athanasius of Brest.
• New Hieromartyr Alexis (Belkovsky), Archbishop of Great Ustiug.
• New Hieromartyr Vladimír Petřek.
• New Hieromartyr Václav Čikl.
• New Martyr Ján Sonnevend.
• New Martyr Václav Ornest.