September 23 - Eastern Orthodox liturgical calendar - September 25

All fixed commemorations below celebrated on October 7 by Orthodox Churches on the Old Calendar.^{[note 1]}

For September 24th, Orthodox Churches on the Old Calendar commemorate the Saints listed on September 11.

• Protomartyr and Equal-to-the-Apostles Thekla of Iconium (1st century)^{[1][2][3][4][note 2]}
• Saint Persa (Persis, Persida).^{[5][6][note 3]}
• Venerable Coprius of Palestine, monk (530)^[1][3][7][8]

• Saint Anathalon (Anatolius), fhe first Bishop of Milan (1st century)^{[9][note 4]}
• Saints Andochius, Thyrsus and Felix, marytrs in Gaul (2nd century)^{[9][note 5][note 6]}
• Saint Rusticus, Bishop of Clermont in Auvergne in France (446)^{[9][note 7]}
• Saint Geremarus (Germer), founder of Saint-Germer-de-Fly Abbey (c. 658)^{[9][note 8][note 9]}
• Saints Chuniald and Gislar, born in Ireland, they enlightened the south of Germany and Austria with St Rupert of Salzburg (7th century)^[9]
• Saint Gerard Sagredo (Gerard of Csanád), Apostle of Hungary (1046)^{[9][note 10][note 11]}
• Saint Isarnus of Marseilles, Abbot (1048)^{[1][9][11][note 12][note 13]}

• Saint Abramius, first Abbot of Mirozh Monastery in Pskov (1158)^{[1][11][12][13]}
• Saints Stephen the First-Crowned (in monasticism Simon) (1224),^[6][14] David (13th century),^[15] and Stephen Vladislav (after 1264),^[16][17] of Serbia.^[1][11]
• Venerable Nicander, hermit of Pskov (1581)^{[1][11][17][18][note 14]}
• Monk-martyr Galacteon of Vologda (1612)^{[1][11][17][19][20]}
• Venerable New Hiero-confessor Leontius (Karpovich), Archimandrite, of Vilnius (1620)^{[1][13][note 15]}
• Saint Theodosius, Abbot, of Manyava Skete, Ukraine (1629)^[1]
• Venerable Dorothea, Schema-Nun of Kashin (1629)^[1][11][21]
• Martyr Saint Ahmet the Calligrapher of Constantinople (1682)^[22][23]
• Hieromartyr Juvenaly of Alaska (1796)^[1][24]
• New Martyr of Alaska, Peter (Cungagnaq) the Aleut, at the hands of Roman Catholics in San Francisco (1815)^[1][25] (see also: December 13 - Synaxis of the First Martyrs of the American land.)
• Venerable Gabriel of Seven Lakes Monastery in Kazan, and of Pskov-Eleazar Monastery in Pskov, Schema-Archimandrite (1915)^[1][11]
• Venerable Silouan, Elder of St. Panteleimon Monastery, Mount Athos (1938)^{[6][26][note 16]} (see also: September 11 )

• Icon of the Most Holy Theotokos "Of Mirozh" (1198)^{[1][11][17][32]}
• Icon of the Most Holy Theotokos "Filerimos" in Rhodes (10th century)^[33]
• Icon of the Most Holy Theotokos "Of the Myrtle Tree" / "Myrtidiotissa" of Kythera (14th century)^{[1][3][11][34][35][36][note 17][note 18]}
• Synaxis of All Saints of Alaska - Arrival in America of the first Orthodox Mission (1794):^[1][11][42] (see also: December 13 - Synaxis of the First Martyrs of the American land.)

• Saints Herman, Juvenaly,^[43] and others.

• Protomartyr and Equal-to-the-Apostles Thekla of Iconium.
• Protomartyr and Equal-to-the-Apostles Thekla of Iconium.
• St. Gerard Sagredo (Gerard of Csanád), Apostle of Hungary.
• St. Juvenaly of Alaska.
• St. Peter the Aleut.
• Venerable Silouan the Athonite.
• Icon of the Most Holy Theotokos "Of Mirozh" (Mirozhskaya).
• Icon of the Most Holy Theotokos "Myrtidiotissa", of Kythera.