May 9 - Eastern Orthodox Church calendar - May 11
Saints
- Simon the Zealot, Apostle
- Saint Simon of Vladimir and Suzdal (Kiev Caves ), bishop
- Saint Isidora the Fool of Tabenna in Egypt
- Blessed Thais of Egypt
- Martyr Hesychius of Antioch
- Martyrs Philadelphus, Cyprian, Alphius, Onesimus, Erasmus, and 14 others, in Sicily
- Saint Laurence of Egypt , monk
- Saint Conleth of Ireland
- Blessed Simon of Yuricvits , Fool-for-Christ
Other commemorations
- Translation of the relics of the blessed martyr Basil of Mangazea in Siberia
- Repose of blessed Synesius of Irkutsk (1787)
- Repose of Eldress Taisia of Voronezh (1840)