December 10 (Eastern Orthodox liturgics)
December 9 - Eastern Orthodox liturgical calendar - December 11
All fixed commemorations below celebrated on December 23 by Eastern Orthodox Churches on the Old Calendar.
For December 10th, Orthodox Churches on the Old Calendar commemorate the Saints listed on November 27.
Saints
Martyrs Menas the Melodius, Hermogenes, and Eugraphus, of Alexandria- Martyr Gemellus of Paphlagonia, cruelly tortured and crucified at Ancyra
- Hieromartyr Theoteknos, by the sword
- Martyr Marianus, by stoning
- Martyr Eugenios, beaten to death
- Saint Athanasios, Bishop of Methoni, Messenia
- '''Venerable Thomas Dephourkinos the Righteous of Mount Kyminas in Bithynia'''
Pre-Schism Western saints
- Saints Carpophorus and Abundius, a priest and his deacon who suffered under Diocletian
- Virgin Martyr Eulalia of Barcelona, the most famous virgin martyr in Spain, burnt at the stake under Diocletian
- Saint Julia of Mérida, a martyr together with Saint Eulalia, in Mérida in Spain under Diocletian
- Saint Mercurius and Companions, at Lentini in Sicily, soldiers who were beheaded under the governor Tertyllus, in the time of Emperor Licinius
- Saint Miltiades, Pope of Rome from 311 to 314, who condemned Donatism and was venerated as a martyr on account of his many sufferings during the persecution of Maximian
- Saint Deusdedit, Bishop of Brescia in Italy, played a leading part in the Councils against monothelitism
- Saint Gregory III, Pope of Rome, who was much troubled by iconoclasm and the raids of the Lombards
- Saint Sindulf of Vienne, the thirty-first Bishop of Vienne in France
- Saint Guitmarus, fourth Abbot of Saint-Riquier in France
- Saint Hildemar, a monk at Corbie who became Bishop of Beauvais in France in 821
Post-Schism Orthodox saints
- Righteous Jovan (John) Branković, King of Serbia, and his parents Righteous Stefan (Stephen) Branković the Blind, Despot of Serbia, and Venerable Angelina Branković of Serbia
- '''Saint Joasaph (Ioasaph) Gorlenko, Bishop of Belgorod'''
New martyrs and confessors
- New Hieromartyr Alexander Shklaev of Perm, Protopresbyter
- New Hieromartyr Jacob Shestakov of Perm, Priest
- New Hieromartyr Eugraphus Pletnev of Perm, Priest, and his son, Mikhail Pletnev
- New Hieromartyrs of Ryazan: Protopresbyters - Anatolius Pravdoliubov, Alexander Tuberovsky, Eugene Kharkov, and Constantine Bazhanov, and with them:
- * New Hieromartyr Nicholas Karasiov, Priest
- * New Martyrs Peter Grishin, Michael Yakunkin, Eusebius Tryakhov, Dorotheus Klimashev, Laurentius Kogtyev, Gregory Berdenev
- * New Virgin Martyrs Alexandra Ustiukhina and Tatiana Yegorova
- * New Hieromartyr Michael Kobozev, Priest
- * New Hieromartyr Sergius Sorokin, Hieromonk of Sreznevo, Ryazan
- New Virgin Martyr Eudocia
- New Hieromartyr Protopresbyter Nicholas Rozov of Yaroslavl-Rostov
- New Hieromartyr Alexis Vvedensky, Priest
- New Virgin Confessors Anna Ivashkina and Tatiana Byakirevoy
- New Virgin Confessor Thecla Makusheva
- Venerable New Nun-Confessor Anna Stoliarova, Schemanun of Sreznevo, Ryazan
Other commemorations
- Synaxis of the Archangel Michael at the Adda River in northern Italy, before the Battle of Coronate