January 17 (Eastern Orthodox liturgics)
- Eastern Orthodox liturgical calendar - January 18
All fixed commemorations below are observed on January 30 by Eastern Orthodox Churches on the Old Calendar.
For January 17th, Orthodox Churches on the Old Calendar commemorate the Saints listed on January 4.Saints
- Venerable Anthony the Great, God-bearing father of monasticism
- Martyr Jonilla and her infant son Turbo
- Saint Theodosius the Great, Roman Emperor
- Venerable Achilles the Confessor, hermit of Egypt
- Venerable Anthony the New Wonderworker, of Veria in Greece, near the Haliacmon river
Pre-Schism Western saints
- Saints Genulfus and Genitus, two monks who lived in Celle-sur-Nahon in France
- Venerable Antony, Merulus and John, three monks at St Andrew's on the Coelian Hill in Rome
- Saint Nennius, disciple of St Finian of Clonard, reckoned as one of the 'Twelve Apostles of Ireland'
- Saint Sulpicius II Pius, Bishop of Bourges
- Saint Mildgyth, a Benedictine nun and later abbess of a Northumbrian convent
- Saint Richimirus, under the patronage of the Bishop of Le Mans, he founded the monastery later called Saint-Rigomer-des-Bois
- Saint Joseph of Freising, Bishop of Freising
Post-Schism Orthodox saints
- Saint Anthony the Roman of Novgorod, Abbot
- Saint Anthony, Abbot of Dymsk in Novgorod
- Saint Anthony of Chernoezersk, monk
- Saint Anthony of Krasny Kholm, monk
- Venerable Anthony of Meteora, founder and Abbot of the Monastery of St. Stephen at Meteora
- Venerable Philotheos of Meteora, second founder of the Monastery of St. Stephen at Meteora
- Saint Macarius, Hierodeacon, of Patmos
- New Martyr George of Ioannina
- New Hieromartyr Victor Evropeytsev, Priest
- New Hieromartyr Paul Uspensky, Priest
Other commemorations
- Repose of St. Anthony, Bishop of Vologda
- Repose of Schema-abbot Herman of Zosima Hermitage
- Repose of Archimandrite Tikhon of Inkerman
- Repose of Bishop Sava of Edmonton
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