January 19 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 19 are broadly the same, no matter which calendar is used.
Virgin Martyr Euphrasia of Nicomedia (303)
Saint Theodotus, Bishop of Cyrene (c. 307-323)
Venerable Macarius the Great of Egypt (390)
Venerable Macarius the Younger of Alexandria (c. 394)
Venerable Macarius, Bishop of Ierissos on the Chalkidiki peninsula (c. 395-408)
Saints Maximos and Dometios (Maximus and Domatius) of Nitria (4th century)
Venerable Anton (Anthony) the Stylite of Martqopi, founder of monasticism in Georgia, of the Thirteen Assyrian Fathers (6th century)
Martyr Anthony Rawah the Qoraisite (797)
Saint Arsenius, Archbishop of Corfu (Kerkyra) (953)
Martyr Pontian, in Spoleto, Italy under Marcus Aurelius (169)
Virgin Martyr Messalina, in Foligno, Italy (251)
Martyrs Marius, Martha, Audifax, and Abachum, in Rome (270) (see also: July 6)
Martyrs Paul, Gerontius, Januarius, Saturninus, Saccesius, Julius, Catius, Pius and Germanus, in Numidia in North Africa
Saint Firminus, third Bishop of Gévaudan (Gabales), France
Saint Bassian, Bishop of Lodi, Lombardy (413)
Saint Contestus (Contentius), Bishop of Bayeux, France from 480 on (510)
Saint Laumer (Lomer, Laudomarus), Abbot of Corbion Monastery (593)