January 27 (Eastern Orthodox liturgics)
January 26 - 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 the Elder, 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 Kurapalates 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 Saint 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 Saint 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
- Saint Alruna of Cham, recluse
Post-Schism Orthodox saints
- Venerable Titus the Soldier, monk of the Kiev Caves Monastery
- Saint Clement the Stylite of Mount Ságmata, Boeotia
- Saint Demetrius Klepinine, Priest, of Paris
New martyrs and confessors
- New Martyr Demetrius at Constantinople
- New Hieromartyr Peter Zverev of Voronezh
- New Hieromartyr Paul Dobromislov, Protopresbyter of Alma-Ata
- New Confessor Anna Ivashkina of Ryazan
- Venerable New Confessor Leonty Stasevich of Ivanovo, Archimandrite
- New Hieromartyr Leontius the Mystic of Ternopil and Jablechna monastery, Poland
Other commemorations
Translation of the relics of Saint John Chrysostom, Archbishop of Constantinople- Repose of Nun Neonilla of the Farther Davidov Convent
- Repose of Schema-nun Margarita of Diveyevo Monastery