September 3 (Eastern Orthodox liturgics)
Sep. 2 - Eastern Orthodox liturgical calendar - Sep. 4
All fixed commemorations below celebrated on September 16 by Orthodox Churches on the Old Calendar.
For September 3rd, Orthodox Churches on the Old Calendar commemorate the Saints listed on August 21.
Saints
Saint Phoebe, Deaconess of Cenchreae near Corinth- Hieromartyr Aristion of Alexandria, Bishop of Alexandria Scabiosa Hieromartyr Anthimus of Nicomedia, Bishop of Nicomedia
- Hieromartyr Theophilus the Deacon, and martyrs Dorotheus, Mardonius, Migdonius, Peter, Indes, Gorgonius, Zeno, Virgin Domna, and Euthymius
- Martyr Basilissa of Nicomedia
- Martyr Zenon, immersed in a cauldron of boiling lead.
- Martyr Chariton, thrown into a pit of boiling lime.
- Martyr Archontius.
- Venerable Theoctistus of Palestine, fellow ascetic with Venerable Euthymius the Great
- Saint Constantine the New, Emperor of Byzantium, in the Church of the Holy Apostles
- Saint Trivelius Theoktist, who played an important role in defeating the Arabs during the Siege of Constantinople in 717–718
Pre-Schism Western saints
- Saints Euphemia, Dorothy, Thecla and Erasma, a group of virgin-martyrs in Aquileia in Italy, venerated in Venice and Ravenna
- Saint Mansuetus, Bishop of Toul in France, Confessor
- Saint Ambrose, Bishop of Sens in France
- Saint Macanisius, the founder and first bishop-abbot of Connor
- Saint Auxanus, Bishop of Milan
- Saint Maurilius, Bishop of Cahors in France
- Saint Natalis, a priest in Casale in Piedmont
- Saint Gregory the Great, Pope of Rome
- Saint Remaclus, Bishop of Maastricht
- Saint Frugentius, a monk at Fleury Abbey, martyred with St Aigulphus, Abbot of Lérins in France
- Saint Aigulphus of Provence, Abbot of Lérins
- Saint Hereswith, a princess from Northumbria in England, and sister of St Hilda, she ended her life as a nun at Chelles Abbey in France
- Saint Regulus, a monk at Rebais in France with St Philibert, later Archbishop of Rheims and founder of the monastery of Orbais
- Saint Hildebold, first Archbishop of Cologne
- Saint Sandalus, a martyr in Cordoba in Spain under the Moors
- Saint Edward the Martyr, Martyr and King of England
Post-Schism Orthodox saints
- Saint Ioannicius II, First Serbian Patriarch, Wonderworker
- Blessed John "the Hairy", Fool-for-Christ of Rostov
- New Martyr Polydorus of Leucosia, Cyprus, at New Ephesus
- Venerable Saints Neophytes and Meletios of Stânișoara Monastery
New martyrs and confessors
- New Hieromartyr Pimen, Bishop of Vernensk and Semirechensk
- New Hieromartyr Meletius, Hieromonk of the Issyk-Kul Holy Trinity Monastery, Kyrgyzstan
- New Hieromartyrs Sergius Fenomenov, Basil Kolmikov, Philip Shatsky, and Vladimir Dmitrievsky, Priests
- New Hieromartyrs Basil Krasivsky and Parthenius Krasivsky, Priests
- New Hieromartyrs Andrew Dalnikov and Theophan Sokolov, Priests
- New Hieromartyrs Vladimir Sadovsky and Michael Sushkov, Priests
- New Hieromartyr Nicholas Sushchevsky, Priest
- New Hieromartyr Euthymius Krygovich, Priest, and 4 martyrs with him
- New Hieromartyr Romanus Marchenko, Priest
- New Hieromartyr Alexis Zinoviev, Priest
- New Hieromartyr Elias Bazhanov, Priest
- New Hieromartyr Peter Sorokin, Deacon of Alma-Ata
Other commemorations
- Icon of the Theotokos of Pisidian Sozopolis
- Repose of Priest Peter of Uglich, Fool-for-Christ Translation of the relics of St. Nektarios (Kephalas) of Aegina, Metropolitan of Pentapolis and Wonderworker
- Translation of the relics of Venerable Anthimos (Vagianos) of Chios