December 20 in Eastern Orthodox liturgical calendars is a feast day and a day of commemoration of saints and martyrs. Although some Orthodox churches use the Revised Julian Calendar and others use the traditional Julian calendar, the fixed commemorations for their respective December 20 are broadly the same, no matter which calendar is used.
Contents
Feasts
Forefeast of the Nativity of Christ
Saints
Hieromartyr Ignatius Theophorus (the God-bearer), Bishop of Antioch (107) (see also January 29)
Saint Philogonius, Bishop of Antioch, Confessor (322–324)
Saint Paul of Latrus (Latra), Greek hermit (c. 956)
Pre-Schism Western saints
Martyrs Liberatus and Bajulus, at Rome
Saint Ursicinus, Bishop of Cahors in France (c. 585)
Saint Dominic of Brescia, successor of Saint Anastasius as Bishop of Brescia in Italy (c. 612)
Saint Ursicinus, born in Ireland, disciple of Saint Columbanus, and founder of the monastery of Saint-Ursanne (c. 625)
Post-Schism Orthodox saints
Saint Danilo (Daniel) II, Archbishop of Serbia (1338)
Venerable Ignatius, Archimandrite of the Kiev Caves (1435)
Saint Anthony Smirnitsky, Archbishop of Voronezh (1846)
Righteous John of Kronstadt, Wonderworker (1908) (see also October 19)
Venerable Serafim (Popescu) the Long-Suffering of Sâmbăta de Sus, Archimandrite (1990)
New martyrs and confessors
New Martyr John the Tailor of Thasos, at Constantinople, by beheading (1652)
New Hieromartyr Nikolai Chernishev, Archpriest of Udmurtia (east of Kazan), and his daughter, New Martyr Barbara (1919)
Other commemorations
Icon of the Mother of God the Rescuer of the Drowning
Icon of the Mother of God of Novgorod.



