December 4 (Eastern Orthodox liturgics)
[file:Maryhill Museum - St. Barbara, St. Seraphim, and St. John of Damascus (Ioannes Eugenoglu) 01.jpg|thumb|4 december saints: St. Barbara, St. Seraphim of Phanarion, and St. John of Damascus]
December 3 - Eastern Orthodox liturgical calendar - December 5
All fixed commemorations below celebrated on December 17 by Eastern Orthodox Churches on the Old Calendar.
For December 4th, Orthodox Churches on the Old Calendar commemorate the Saints listed on November 21.
Saints
- Commemoration of the Twelve (Minor) Prophets
- Apostle Crispus of the Seventy Apostles, Bishop of Chalcedon Greatmartyr Barbara and Martyr Juliana, at Heliopolis in Syria
- Martyr Christodulus and Virgin Martyr Christodula, by the sword
- Saint John, Bishop and Wonderworker of Polybotum, Phrygia Salutaris
- '''Venerable John of Damascus, Monk of St. Sabbas Monastery'''
Pre-Schism Western saints
- Saint Felix, fifth Bishop of Bologna, previously a Deacon of the Church of Milan under Saint Ambrose of Milan
- Saint Bertoara, Abbess of Notre-Dame-de-Sales in Bourges
- Saint Ada, niece of Engebert, Bishop of Le Mans, she became a nun at Soissons, and Abbess in Le Mans
Post-Schism Orthodox saints
- '''Saint Gennadius, Archbishop of Novgorod'''
New martyrs and confessors
- Venerable Cassian the Martyr, one of the "300 Allemagne Saints" in Cyprus
- New Hieromartyr Seraphim, Archbishop of Phanarion and Neochorion
- New Hieromartyr Nicholas Tsedrik, Priest
- New Martyrs of Perm :
- * Hieromartyrs Alexis Saburov, John Pyankov, Protopresbyters
- * Alexander Posokhin and Nicholas Yakhontov, Priests
- * Basil Kashin, Deacon, and with him 10 Martyrs
- New Hieromartyrs Damascene Tsedrik, Bishop of Glukhov, and his father, Nicholas Tsedrik, Priest
- New Hieromartyr Demetrius Nevedomsky, Priest
- New Virgin Martyrs Catherine Arskoy and Kyra Obolensky