May 19 (Eastern Orthodox liturgics)
May 18 - 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 (Patrick), 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 Eudoxia of Moscow, Grand-Duchess 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
New martyrs and confessors
- Hieromartyr Matthew Voznesensky
- Hieromartyr Innocent, Archbishop of Kharkiv
- Hieromartyr Victor Karakulin
- Hieromartyr 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 Kharkiv.
- Slaying of Priest John Karastamatis of Santa Cruz