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May 12 in Eastern Orthodox liturgical calendars is a feast day and a day of commemoration of saints and martyrs. Although some Orthodox churches use the Revised Julian Calendar and others use the traditional Julian calendar, the fixed commemorations for their respective May12 are broadly the same, no matter which calendar is used.

Saints

Saint Domitilla the martyr (c. 81-96)Ἡ Ἁγία Δομιτίλλα ἡ Μάρτυς. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.May 12. The Roman Martyrology. Saints Nereus and Achilleus the martyrs (100)Οἱ Ἅγιοι Ἀχιλλέας καὶ Νερέος οἱ Μάρτυρες. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Rev. Sabine Baring-Gould (M.A.). "SS. NEREUS, ACHILLES, AND FLAVIA DOMITILLA, MM. (1ST CENT.)." In: The Lives of the Saints. Volume the Fifth: May. London: John C. Nimmo, 1898. pp. 158-159. Saint Dracontius, Bishop of Nicaea (c. 1st to 3rd centuries)Ὁ Ἅγιος Δρακόντιος Ἐπίσκοπος Νικαίας. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Saint Epiphanius, Bishop of Salamis and Metropolitan of Cyprus (403)May 12/25. Orthodox Calendar (PRAVOSLAVIE.RU).Ὁ Ἅγιος Ἐπιφάνιος Ἐπίσκοπος Κωνσταντίας καὶ Ἀρχιεπίσκοπος Κύπρου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Rev. Sabine Baring-Gould (M.A.). "S. EPIPHANIUS, B. OF SALAMIS. (A.D. 403.)." In: The Lives of the Saints. Volume the Fifth: May. London: John C. Nimmo, 1898. pp. 164-170. Saint Calliope (Callitropos), nun, sister of St. Epiphanius of Cyprus.Ἡ Ὁσία Καλλίτροπος, ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Saint Sabinus, Archbishop of Cyprus (successor of St. Epiphanius to the Cypriot cathedra) (5th century)St Sabinus the Archbishop of Cyprus. OCA - Feasts and Saints. Saint Polybius of Cyprus, Bishop of Rinokyr in Egypt, Wonderworker (5th century)St Polybius the Bishop in Cyprus. OCA - Feasts and Saints. Saint Theophanes, Archbishop of Cyprus (7th century)Ὁ Ἅγιος Θεοφάνης Ἀρχιεπίσκοπος Κύπρου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Patriarch Germanus I of Constantinople (740)Ὁ Ἅγιος Γερμανὸς Πατριάρχης Κωνσταντινουπόλεως. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Rev. Sabine Baring-Gould (M.A.). "S. GERMANUS, PATR. OF CONSTANTINOPLE, C. (ABOUT A.D. 732.)." In: The Lives of the Saints. Volume the Fifth: May. London: John C. Nimmo, 1898. pp. 174-180. Venerable Theodore of Kythera, ascetic (922)Ὁ Ὅσιος Θεόδωρος ὁ ἐν Κυθήροις ἀσκήσας. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.

Pre-Schism Western saints

Saint Philip of Agira in Sicily, the Hieromartyr (103)Ὁ Ἅγιος Φίλιππος ὁ Ἱερομάρτυρας ὁ Ἀργύριος. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Rev. Sabine Baring-Gould (M.A.). "S. PHILIP OF AGYRA, P.C. (5TH CENTURY)." In: The Lives of the Saints. Volume the Fifth: May. London: John C. Nimmo, 1898. pp. 161-164. Martyr Pancratius of Rome (304)Ὁ Ἅγιος Παγκράτιος ὁ Μάρτυρας. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Martyr Pancratius. OCA - Feasts and Saints. Martyr Dionysius (Denis), uncle of St. Pancratius (304)May 12. Latin Saints of the Orthodox Patriarchate of Rome. Saint Díoma, teacher of St Declan of Ardmore, patron-saint of Kildimo in Co. Limerick in Ireland (5th century) Saint Modoald, Archbishop of Trier, related by blood and united by friendship with most of the saints of the Merovingian period (640) Saint Rictrudis, Abbess of Marchiennes Abbey in Flanders (688)Rev. Sabine Baring-Gould (M.A.). "S. RICTRUDIS, W. ABSS. (ABOUT A.D. 688.)." In: The Lives of the Saints. Volume the Fifth: May. London: John C. Nimmo, 1898. pp. 170-173. Saint Æthelhard, Archbishop of Canterbury (805)

Post-Schism Orthodox saints

Saint Euthemius (Euthymius), Patriarch of Jerusalem (c. 1084 or c. 1224)Ὁ Ἅγιος Εὐθύμιος Πατριάρχης Ἱεροσολύμων. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Saint Nikitas the Sinaite.Ὁ Ὅσιος Νικήτας ὁ Σιναΐτης. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. New Martyr John of Serres (15th century)Ὁ Ἅγιος Ἰωάννης ὁ Νεομάρτυρας ἐκ Σερρῶν. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Saint Theophanes, Bishop of Solea (Solia), Cyprus, later a hermit in the Troodos Mountains, the Outpourer of Myrrh (1550)Ὁ Ἅγιος Θεοφάνης Ἐπίσκοπος Σολέα Κύπρου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Venerable Dionysius of Radonezh, Archimandrite of the Troitse-Sergiyeva Lavra(1633)Ὁ Ὅσιος Διονύσιος τοῦ Ραντονέζ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Venerable Dionysius the Archimandrite of St Sergius' Monastery. OCA - Feasts and Saints. New Martyr John of Wallachia, at Constantinople (1662)Ὁ Ἅγιος Ἰωάννης ὁ Νεομάρτυρας ἐκ Βλαχίας. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Martyr John the Wallachian of Romania. OCA - Feasts and Saints. Saint Anthony (Medvedev) of Radonezh, Archimandrite of Troitse-Sergiyeva Lavra (1877)Ὁ Ὅσιος Ἀντώνιος τοῦ Ραντονέζ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Repose of Saint Nectarius (Tikhonov) of Optina (1928)Ὁ Ὅσιος Νεκτάριος τῆς Ὄπτινα. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Synaxis of the Holy Elders of the Sofronievo-Molchensk Hermitage (2009): СОБОР МОЛЧЕНСКИХ ПРЕПОДОБНЫХ. Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026.Vladimir (Sabodan) of Kiev, Metropolitan of Kyiv and All Ukraine. New-Year Address of the Hierarchs of the Ukrainian Orthodox Church. Orthodoxy Cognate PAGE (OCP). December 26, 2009. Archimandrite Theodosy (Maslov) (1802); ФЕОДОСИЙ (МАСЛОВ). Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026.Ὁ Ὅσιος Θεοδόσιος ἐκ Ρωσίας. 12 Ιανουαρίου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Hieromonk Serapion (Molchensky) (1718); СЕРАПИОН МОЛЧЕНСКИЙ. Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026. Monk Sophronius (Batovrin) (1692); СОФРОНИЙ (БАТОВРИН). Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026. Novice Sergius (Tikhonov), Fool-for-Christ (1879). СЕРГИЙ (ТИХОНОВ). Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026.

New martyrs and confessors

New Martyr Abbess Athanasia (Lepeshkina), of the Smolensk Hodigitria Convent near Moscow (1932)May 25 / May 12. HOLY TRINITY RUSSIAN ORTHODOX CHURCH (A parish of the Patriarchate of Moscow). АФАНАСИЯ (ЛЕПЕШКИНА). Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 26, 2026. (see also: April 29 - OS) New Hieromartyr Peter Popov, priest of Yaroslavl-Rostov (1937) 12 мая (ст.ст.) 25 мая 2013 (нов. ст.). Русская Православная Церковь Отдел внешних церковных связей. (DECR). ПОПОВ ПЕТР АЛЕКСЕЕВИЧ, ЯРОСЛАВСКИЙ. Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026. Martyr Evdokia Martishkina (1938) МАРТИШКИНА ЕВДОКИЯ ПЕТРОВНА. Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026.

Other commemorations

Consecration of the Cathedral of the Theotokos at Kiev (in 996)The Autonomous Orthodox Metropolia of Western Europe and the Americas (ROCOR). St. Hilarion Calendar of Saints for the year of our Lord 2004. St. Hilarion Press (Austin, TX). p.35. КИЕВСКИЙ ДЕСЯТИННЫЙ ХРАМ. Открытая православная энциклопедия "Древо" (Open Orthodox Encyclopedia "The Tree") Retrieved: February 27, 2026. Glorification (1913) of Hieromartyr Patriarch Hermogenes of Moscow (1612)Ὁ Ἅγιος Ἑρμογένης ὁ Ἱερομάρτυρας Πατριάρχης Μόσχας. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.Hieromartyr Hermogenes the Patriarch of Moscow and All Russia. OCA - Feasts and Saints. Discovery of the holy relics (1961) of Saint Irene of Lesvos the Virgin-martyr (1463)Εὕρεσις Τιμίων Λειψάνων Ἁγίας Εἰρήνης τῆς Παρθενομάρτυρος. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Second Uncovering of the relics (1992) of Righteous Simeon of Verkhoturye (1642) Commemoration of Monk Dorotheus, Disciple of St. Dionysius of St. Sergius Lavra (1622)

Icon gallery

Notes

References

Sources May 12/25. Orthodox Calendar (PRAVOSLAVIE.RU). May 25 / May 12. HOLY TRINITY RUSSIAN ORTHODOX CHURCH (A parish of the Patriarchate of Moscow) May 12. OCA - The Lives of the Saints. May 12. Latin Saints of the Orthodox Patriarchate of Rome. May 12. The Roman Martyrology. Greek Sources Great Synaxaristes: 12 ΜΑΪΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ. Συναξαριστής. 12 Μαΐου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ). Russian Sources 25 мая (12 мая). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru). 12 мая (ст.ст.) 25 мая 2013 (нов. ст.). Русская Православная Церковь Отдел внешних церковных связей. (DECR).