January 9 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 January 9 are broadly the same, no matter which calendar is used.
Afterfeast of the Theophany of Our Lord and Savior Jesus Christ
Prophet Shemaiah (Samaia, Sameas, Semeias), (III Kings 12:22), (10th century BC) (Russian use only, see also: January 8 - Standard use)
Martyr Polyeuctus of Melitene in Armenia (259)
Martyr Antonina of Nicomedia, martyred at sea
Martyr Lawrence, martyred in the arena, by the pagans
Saint Peter, Bishop of Sebaste in Armenia, brother of Saints Macrina the Younger, Basil the Great, Naucratius, and Gregory of Nyssa, and Blessed Theosebia (c. 395)
Saint Eustratius the Wonderworker of Tarsus (821)
Venerable Basil and Gregory the Wonderworkers, uncles of Saint Eustratius (9th century)
Virgin Martyr Paschasia, venerated from ancient times in Dijon, France (c. 178)
Epictetus, Jucundus, Secundus, Vitalis, Felix and seven other Companions - Twelve martyrs in North Africa, probably under Decian (c. 250)
Virgin Martyr Marciana of Mauretania, in Mauritania in North Africa (c. 303)
Saint Marcellinus of Ancona, Bishop of Ancona (566)
Saint Waningus (Vaneng), Benedictine abbot (c. 686)
Saint Maurontus (Maurontius, Mauruntius), founder of the monastery of Saint-Florent-le-Vieil on the Loire in France (c. 700)
Saint Adrian, Abbot of Sts Peter and Paul, later called St Augustine's, in Canterbury (710)
Saint Berhtwald (Brithwald, Brihtwald), a monk and then the Abbot of Reculver in Kent, and in 693 becoming the ninth Archbishop of Canterbury (731)
Saint Fillan (Foelan, Foellan, Foilan), Abbot of Strath Fillan, born in Ireland, he accompanied his mother, Saint Kentigerna, and his relative, Saint Comgan, to Scotland, where he lived as a monk (8th century)