May 19 (Eastern Orthodox liturgics)
- Eastern Orthodox Church calendar - May 20
All fixed commemorations below celebrated on June 1 by Orthodox Churches on the Old Calendar.
For May 19th, Orthodox Churches on the Old Calendar commemorate the Saints listed on May 6.Saints
- Hieromartyrs Patricius, Bishop of Prusa, and with him the Presbyters Acacius, Menander, and Polyenos
- Martyrs Calocerus and Parthenius, brothers
- Martyr Philoterus of Nicomedia
- Martyr Acoluthus of the Thebaid
- Martyr Cyriaca and the six holy virgin-martyrs in Nicomedia
- Martyr Theotima of Nicomedia
- Saint John, Bishop of the Goths in Crimea
Pre-Schism Western saints
- Martyr Pudens, the senator
- Virgin-Martyr Pudentiana, daughter of Saint Pudens the senator
- Saint Cyril of Trier, Bishop of Trier,
- Saint Adolphus, ascetic of the Benedictine Abbey of St. Vaast, in Arras, and later Bishop of Arras Cambrai in the north of France
- Saint Dunstan, Archbishop of Canterbury
Post-Schism Orthodox saints
- Monk-martyrs and Confessors of the Monastery of Panagia of Kantara, on Cyprus, who suffered under the Latins :
- Right-Believing Great Prince Dmitry Donskoy, Great Prince of Moscow
- Venerable Sinaites of Serbia :
- Saint Cornelius of Paleostrov, Abbot
- Saint John, Prince of Uglich, tonsured as Ignatius in Vologda
- Venerable Cornelius of Komel, Abbot and Wonderworker
- Saint Sergius of Shukhtov, monk
- Hieromartyr Matthew Voznesensky
- Hieromartyr Innocent, Archbishop of Kharkiv
- Hieromartyr Victor Karakulin
- Hieromartyr :ru:Онуфрий |Onuphrius, Archbishop of Kursk and Oboyansk, and:
- New Hieromartyr Valentine Lukyanov
- All New Hieromartyrs of Slobozhanschyna Ukraine
Other commemorations
- Entrance into Georgia of Saint Nina, Equal-to-the-Apostles
- Translation of the sacred relics of Saints Julius the Presbyter and Julianus the Deacon
- Repose of Schemamonk Cyriacus of Valaam
- Repose of Righteous Nicholas Rynin of Vologda
- Commemoration of the ascetics of St. Anthony of Syadem Monastery: Elias, Theophanes, and Dionysius.
- Synaxis of Hieromartyrs of Kharkov.
- Slaying of Priest
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