March 20 – Eastern Orthodox liturgical calendar – March 22

All fixed commemorations below are observed on April 3 by Orthodox Churches on the Old Calendar.^{[note 1]}

For March 21st, Orthodox Churches on the Old Calendar commemorate the Saints listed on March 8.

Saints

• Martyrs Philemon and Domninus of Thessalonica, in Italy.^[1][2][3] (see also: March 26)
• Saint Maria the Martyr, in Perge.^{[4][note 2]}
• Saint Serapion, Bishop of Thmuis, Egypt (c. 358)^{[1][3][5][6][note 3]}
• Venerable Serapion the Sindonite, monk of Egypt (5th century)^[1][8] (see also: May 14)
• Saint Sophronius, Abbot of the Monastery of St. Theodosius, in Palestine (542)^[1]
• Saint Thomas, Patriarch of Constantinople (610)^{[1][9][10][note 4]}
• Venerable Jacob the Confessor (James the Confessor), Bishop, of the Studion (late 8th century)^{[1][11][note 5]}

Pre-Schism Western saints

• Saint Beryllus, Bishop of Catania (c. 90)^{[1][3][13][14][note 6][note 7]}
• Saint Lupicinus of Condat, desert-dweller of the Jura Mountains, Gaul (480)^{[1][3][14][17][note 8]}
• Saint Enda of Aran, Abbot of Arranmore, monk, earliest leader of Irish monasticism (530)^{[1][14][18][19][note 9]}

Post-Schism Orthodox saints

• New Martyr Michael of Agrapha (Michael of Soluneia), at Thessalonica (1544 or 1547)^[1][20][21]
• Venerable Seraphim of Vyritsa (1949)^{[1][22][23][note 10]}

New martyrs and confessors

• New Hieromartyr Vladimir Vvedensky, Priest (1931)^[24][25]
• New Hieromartyr Theodore (Pozdeyevsky), Archbishop (1938)^{[5][24][26][note 11]} (see also: October 10)

Other commemorations

• Glorification of Venerable Pachomius, Abbot, of Nerekhta (1384)^[1] (see also: May 15)

Gallery

• 
  Venerable Seraphim of Vyritsa.
• 
  New Hieromartyr Theodore (Pozdeyevsky), Archbishop.
• 
  Venerable Pachomius, Abbot, of Nerekhta.