Saint Sergius was a 3rd-century Roman soldier venerated as a Christian saint and martyr, almost always paired with Saint Bacchus as Saints Sergius and Bacchus.
Saint Sergius may also refer to:
Sergius of Cappadocia (died 304), Cappadocian monk and martyr Saint Sarkis the Warrior (4th century), the Armenian form of Sergius; it is unclear if he should be identified with Saint Sergius Pope Sergius I (died 701), pope and saint Sergios Niketiates (died 843), Eastern Orthodox saint venerated for his role in the restoration of the veneration of icons Sergius of Valaam (10th century), Greek monastic Sergius of Samarkand (), Church of the East saint Sergius of Radonezh (1314–1392), Russian spiritual leader and monastic reformer St. Sergius Orthodox Theological Institute in Paris
See also Little Hagia Sophia, the Church of Saints Sergius and Bacchus Sergius (disambiguation) Maalouf