September 23 (Eastern Orthodox liturgics)
- Eastern Orthodox liturgical calendar - September 24
All fixed commemorations below celebrated on October 6 by Orthodox Churches on the Old Calendar.
For September 23rd, Orthodox Churches on the Old Calendar commemorate the Saints listed on September 10.Saints
- Saints Xanthippe and Polyxena, of Spain, disciples of the Apostles
- Virgin-martyr Irais of Alexandria
- Martyrs Andrew and John, and his sons Peter and Antoninus, of Syracuse, martyred in Africa
Pre-Schism Western saints
- Saint Linus, the first Pope of Rome
- Saint Paternus, Bishop of Avranches
- Saint Constantius, sacristan of the ancient church of St Stephen in Ancona in Italy
- Saint Adomnán, Abbot of Iona, biographer of Saint Columba
- Saint Cissa of Crowland, a disciple of St Guthlac at Crowland in England
Post-Schism Orthodox saints
- New Martyr Nicholas the Grocer, at Constantinople
- New Martyr John of Konitsa, Epirus, by beheading
- New Hieromartyr Gregory, Metropolitan of Argos and Nauplion, Ethnomartyr
- New Hieromartyr John Pankratovich, Priest
- New Hieromartyr Arsenius, Archimandrite
Other commemorations
- The Conception of the Glorious Prophet, Forerunner, and Baptist John.
- Icon of the Mother of God of Slovenka
- Repose of Abbess Eupraxia of Old Ladoga Convent
- Repose of Hieroschemamonk Jerome of Solovki
- Glorification of St. Innocent, Metropolitan of Moscow, Enlightener of Alaska and Siberia
- Myrrh-streaming Iveron Icon of the Theotokos "Hawaiian"
Icon gallery