January 27 (Eastern Orthodox liturgics)
- Eastern Orthodox liturgical calendar - January 28
All fixed commemorations below are observed on February 9 by Eastern Orthodox Churches on the Old Calendar.
For January 27th, Orthodox Churches on the Old Calendar commemorate the Saints listed on January 14.Saints
- Venerable Peter of Egypt, disciple of Abba Lot
- Saint Marciana the Queen, wife of Emperor Justin I, interred in the Church of the Holy Apostles.
- Saint Dimitrianos the Wonderworker, Bishop of Tamassos, Cyprus.
- Venerable Claudinus, monastic.
- Saint Elias II, Patriarch of Jerusalem
- Saint Ashot I of Iberia, first Bagrationi Prince of Georgia, martyred
Pre-Schism Western saints
- Saint Julian of Sora, martyred under Antoninus Pius
- Saint Julian of Le Mans, venerated as the first Bishop of Le Mans in France
- Saint Devota, virgin-martyr in Corsica who expired on the rack in the persecution of Diocletian
- Saint Avitus, venerated in the Canary Islands as their Apostle and first Bishop, martyred in Africa.
- Saints Datius, Reatrus and Companions; and Datius, Julian, Vincent and 27 Companions
- Saint Maurus, founder of a monastery in Bodon in France
- Saint Natalis of Ulster, a monastic founder in the north of Ireland, he worked with St Columba
- Saint Lupus of Châlons, Bishop of Châlons-sur-Saone, famous for his charity to the afflicted
- Saint Vitalian, Pope of Rome from 657 to 672
- Saint Emerius, founder and first Abbot of St Stephen of Bañoles in Catalonia in Spain
- Saint Candida, mother of St Emerius, anchoress at the monastery of St Stephen of Bañoles in Spain
- Saint Gamelbert of Michaelsbuch
- Saint Theodoric II of Orleans, monk at Saint-Pierre-le-Vif in Sens in France, became Bishop of Orleans
Post-Schism Orthodox saints
- Venerable Titus the Soldier, monk of the Kiev Caves Monastery
- New Martyr Demetrius at Constantinople
- Saint Demetrius Klepinine, Priest, of Paris
- New Hieromartyr Peter of Voronezh
- New Hieromartyr Paul Dobromislov, Protopresbyter of Alma-Ata
- Saint Anna Ivashkina, the Confessor of Ryazan
- Venerable Leonty of Ivanovo, Archimandrite, New-Confessor
- New Hieromartyr Leontius the Mystic of Ternopil and Jablechna monastery, Poland
Other commemorations
- Translation of the relics of St. John Chrysostom, Archbishop of Constantinople
- Repose of Nun Neonilla of the Farther Davidov Convent
- Repose of Schema-nun Margarita of Diveyevo Monastery
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