April 23 (Eastern Orthodox liturgics)
April 22 - Eastern Orthodox liturgical calendar - April 24
All fixed commemorations below are observed on May 6 by Eastern Orthodox Churches on the Old Calendar.
For April 23, Orthodox Churches on the Old Calendar commemorate the saints listed on April 10.
Saints
- Martyrs Donatus and Therinus of Bothrotus, in Epirus Holy Glorious Great-martyr and Victory-bearer and Wonderworker George
- Martyr Polychronia, mother of Great-martyr Saint George, a Greek native of Lydda Martyrs Anatolius and Protoleon, soldiers converted by witnessing the martyrdom of St. George; and martyrs Glycerius and Athanasius the Magician, at Nicomedia
- Martyr Valerius, by the sword.
- Martyr Alexandra the Empress, wife of Diocletian
Pre-Schism Western saints
- Martyrs Felix, Fortunatus, and Achilleus, at Valence in France
- Saint Marolus, a Syrian by origin, he became Bishop of Milan in Italy in 408
- Saint Ibar of Beggerin, an enlightener in Ireland, who mainly preached in Leinster and Meath
- Saint Pusinna, a holy virgin in Champagne in France who had six sisters, all widely honoured as saints
- Saint Gerard of Toul, Bishop of Toul in France
- Saint Adalbert of Prague, Bishop of Prague
Post-Schism Orthodox saints
- Blessed George of Shenkursk, Fool-for-Christ
- New Martyr George of Cyprus, at Ptolemais
- King Solomon I of Imeretia, Georgia
- New Martyr Lazarus of Bulgaria, who suffered at Pergamus
- Blessed Sophia of Kleisoura, the ascetic of Kleisoura, Fool-for-Christ
New martyrs and confessors
- New Hieromartyr Priest Igor of Spas Chekriak village, Russia
- New Hieromartyr John Anserov, Priest of Alma-Ata
- New Hieromartyr Sergius Zacharczuk, priest, of Nabroz, Chełm and Podlasie, Poland
Other commemorations
- Repose of Bishop Barnabas of Nizhny Novgorod