January 20 (Eastern Orthodox liturgics)
- Eastern Orthodox liturgical calendar - January 21.
All fixed commemorations below are observed on February 2 by Eastern Orthodox Churches on the Old Calendar.
For January 20th, Orthodox Churches on the Old Calendar commemorate the Saints listed on January 7.Saints
- Martyrs Inna, Pinna, and Rimma, disciples of the Apostle Andrew in Scythia
- Martyr Eusebius
- Venerable Euthymius the Great
- Martyrs Bassus, Eusebius, Eutychius, and Basilides, at Nicomedia
- Martyrs Thyrsus and Agnes
- Saint Leo the Great, Confessor and Emperor of the Eastern Roman Empire
- Saint Peter the Customs Inspector of Constantinople
Pre-Schism Western saints
- Martyr Anna at Rome
- Saint Fabian, Pope of Rome
- Saint Sebastian, one of the most renowned of all the martyrs of Rome
- Saint Molagga, disciple of St David in Wales, founded a monastery in Fulachmhin, Ireland
- Saint Féchín of Fore
- Saint Maurus, monk and Abbot of Classe in Ravenna, and finally Bishop of Cesena.
Post-Schism Orthodox saints
- Venerable Laurence the Recluse of the Kiev Caves
- Venerable Euthymius the Silent, Schemamonk, of the Kiev Caves
- Saint Neophytus of Vatopedi monastery, Mt. Athos
- Saint Euthymius, Patriarch of Turnovo
- Saint Euthymius of Syanzhema
- Venerable Euthymius of Arkhangelsk
- New Martyr Zachariah of Patrai in Morea
- Venerable Theodore Kuzmich of Tomsk
- New Hieromartyr Ioan Pettai, Estonian Martyr Presbyter.
- New Hieromartyr Paul Dobromyslov, Archpriest, of Ryazan
- Venerable Ekvtime the Confessor, of Georgia
Other commemorations
- Repose of Elder Gerasim, founder of Ascension Monastery, Irkutsk
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