May 26 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 May 26 are broadly the same, no matter which calendar is used.
Apostles Carpus and Alphaeus of the Seventy Apostles (1st century)
Martyrs Abercius and Helen, children of Apostle Alphaeus (1st century)
Martyr Julius, Roman soldier, by beheading, at Dorostolum in Mysia (Asia Minor) (302)
Saint Synesius, Bishop of Karpasia in Cyprus, Wonderworker (c. 5th century)
Venerable John of Psichaita the Confessor, of Constantinople (c. 825) (see also: May 7)
Hieromartyr Zacharias, Bishop of Vienne, suffered under Trajan (106)
Hieromartyr Simitrius priest, and 22 other martyrs, who suffered under Antoninus Pius, at Rome (159)
Saint Eleutherius, Pope of Rome (189)
Saints Fugatius (Fagan) and Damian (Deruvian), sent by Pope Eleutherius to England to preach the Gospel (2nd century)
Martyr Priscus, a Roman legionary officer, and a great multitude of other Christians of Besançon, near Auxerre (272)
Martyrs Felicissimus, Heraclius, and Paulinus, at Todi in Umbria (303)
Martyr Quadratus, a martyr in North Africa.
Saint Bécán, a hermit near Cork in Ireland, founder of Kilbeggan, Westmeath (6th century)
Saint Augustine of Canterbury, Evangelizer of England (605)
Saint Oduvald, a noble who became a monk and later Abbot of Melrose Abbey in Scotland (698)
Saint Regintrudis, fourth Abbess of Nonnberg Abbey near Salzburg in Austria (c. 740)
Saint Guinizo, born in Spain, became a monk at Montecassino in Italy (c. 1050)