March 30 - Eastern Orthodox liturgical calendar - April 1

All fixed commemorations below are observed on April 13 by Orthodox Churches on the Old Calendar.^{[note 1]}

For March 31st, Orthodox Churches on the Old Calendar commemorate the Saints listed on March 18.

• Righteous Joseph the Fair (the All-Comely), son of Jacob, Patriarch (c. 1700 BC)^[1][2][3]
• Saint Acacius the Confessor, Bishop of Melitene in Pisidia (251)^[1][4][5][6]
• Saint Hypatius the Wonderworker, Bishop of Gangra (326)^[1][5][7][8]
• Theophilos the Martyr, and those with him, in Crete.^[5][9]
• Martyrs Menander and Sabinus, and another 38 martyrs, in Hermopolis of Egypt, under Julian the Apostate (c. 361-363)^[5][10][11]
• Saint Apollonius (Apollo) of the Thebaid, ascetic (4th century)^[1][12]
• Hieromartyrs Abdas, Bishop of Hormizd-Ardashir,^[13] and the Deacon Benjamin,^[14][15] of Persia (c. 424)^{[1][5][16][note 2]} (see also: May 16 and March 12)
• Saint Hypatius, Abbot of Rufinus in Chalcedon (446)^[1][16][18]
• Venerable Blaise of Amorium and Mount Athos (c. 909)^[1][5][19]
• Venerable Stephen the Wonderworker, ascetic.^[5][20]

• Saint Balbina of Rome (c. 130)^{[17][21][22][note 3]}
• Martyrs Theodulus, Anesius, Felix, Cornelia and Companions, in North Africa.^[17][21][23]
• Saint Renovatus, Abbot of Cauliana in Lusitania, then Bishop of Merida in Spain for twenty-two years (c. 633)^[21][24]
• Saint Aldo, Abbot of Hasnon Abbey (fr) in Belgium (8th century)^{[21][note 4]}
• Saint Guy (Guido) (1046)^{[21][note 5]}

• Saint Hypatius the Healer, of the Kiev Caves (14th century)^[1][25]
• Saint Ivan I of Moscow (John I Daniilovich Kalita), Prince of Moscow from 1325 and Grand Prince of Vladimir from 1328 (1340)^[26]
• Saint Jonah, Metropolitan of Kiev, Moscow, and all Russia (1461)^{[1][5][27][28]}
• Saint Philaret, Abbot of Glinsk Hermitage (1841)^[1]
• Saint Innocent, Metropolitan of Moscow, Enlightener of Siberia and Alaska (1879)^[1][29][30]

• Appearance of the Iveron Icon of the Most Holy Theotokos, on Mt. Athos ("Panagia Portaitissa" or "Gate-Keeper") (late 10th century)^[1][31] (see also: February 12)
• Repose of Archbishop Averky (Taushev) of Syracuse and Holy Trinity Monastery (1976)^[1]
• Repose of Schemanun Anastasia (Shevelenko) of Karaganda (1977)^[1]
• Repose of Archimandrite Thaddeus (Strabulovich) of Vitovnica Monastery (Tadej Štrbulović), Serbia (2003)^[1]

• St Hypatius the Wonderworker of Gangra (Menologion of Basil II)
• A 15th-century Russian icon of St. Hypatius (Hypatian Monastery).
• St. Ivan Kalita.
• St. Jonah of Moscow
• St. Innocent as Metropolitan of Moscow.
• The Relics of Saint Innocent of Alaska, in the Assumption Cathedral at the Trinity-Sergius Monastery in Sergiev Posad, Russia.
• Our Lady of Iveron, Mount Athos, Greece.