thumb|An [[Eastern Orthodox Church|Eastern Orthodox cross]]

April 16 - Eastern Orthodox liturgical calendar - April 18

All fixed commemorations below are observed on April 30 by Eastern Orthodox Churches on the Old Calendar.

For April 17th, Orthodox Churches on the Old Calendar commemorate the Saints listed on April 4.

Saints

  • Hieromartyr Anicetus, Pope of Rome (166)
  • Martyr Adrian of Corinth, in Persia (251)
  • Hieromartyr Symeon (Shemon Bar Sabbae), Bishop in Persia, and those with him (341):

:* Hieromartyrs Abdechalas and Ananias, priests;

:* Martyrs Chusdazat (Usphazanes) and Azat, the eunuchs;

:* Fusicus, the dignitary and Ascitrea, his daughter, and 1,150 (or 1,250 or 1,515) others.

  • Saint Acacius II, Bishop of Melitene (435) <small>(see also: April 18)</small>
  • Saint Agapitus I, Pope of Rome (536) <small>(see also: September 20; April 22 - West)</small>
  • Saint Ephraim the Great, Bishop of Atsquri, Georgia (9th century) <small>(see also: April 15)</small>

Pre-Schism Western saints

  • Martyrs Mappalicus and Companions, in Carthage under Decius (250)
  • Saint Landericus (Landry of Metz), Bishop of Meaux, then Abbot of Soignies (7th century)
  • Saint Wando (Vando), monk and Abbot of Fontenelle Abbey in France (c. 756)|group=note <small>(see also: April 30)</small>

Post-Schism Orthodox saints

  • Venerable Zosimas of Solovki (1478)
  • Saint Macarios (Notaras) of Corinth (1805)
  • Venerable Saints Apostolos (1846) and Theocharis (1829), brothers, of Arta.
  • Venerable Paisius, Fool-for-Christ, of the Kiev Caves (1893)

New martyrs and confessors

  • New Hieromartyr John Prigorovsky of Krasnoyarsk, Priest (1918)
  • New Hieromartyr Michael Novitsky, Confessor, Archpriest, of Uzda, Belorussia (1935)
  • New Hieromartyr Theodore Nedosekin of Moscow, Priest (1942)
  • Repose of Hiero-schema-monk Constantine of Ekaterinburg (1960)