April 15 (Eastern Orthodox liturgics)
April 14 - Eastern Orthodox liturgical calendar - April 16
All fixed commemorations below are observed on April 28 by Eastern Orthodox Churches on the Old Calendar.
For April 15th, Orthodox Churches on the Old Calendar commemorate the Saints listed on April 2.
Saints
- Apostles Aristarchus of Apamea, Pudens, and Trophimus of the Seventy Apostles
- Martyrs Basilissa and Anastasia of Rome, disciples of Apostles Peter and Paul
- Martyr Sukia and nineteen companions with him, including :
- Hieromartyr Theodore and martyr Pausilippus of Thrace, by the sword
- Martyrs Maximus and Olympiada, in Persia Saint Leonidas, Bishop of Athens
- Martyr Crescens of Myra in Lycia, by fire
- Martyr Sabbas the Goth, at Buzău in Wallachia
- Saint Ephraim the Great of Atsquri
Pre-Schism Western saints
- Martyrs Maro, Eutyches and Victorinus, at Rome, under Trajan
- Martyr Eutychius, in Ferentino in Italy.
- Child-martyr Laurentinus Sossius, a boy aged five, martyred on Good Friday in Valrovina near Vicenza in Italy
- Saint Paternus, Bishop and founder of the monastery of Llanbadarn Fawr near Aberystwyth in Wales
- Saint Ruadhan, one of the leading disciples of St Finian of Clonard, founder and abbot of Lothra, Ireland
- Saint Silvester, second Abbot of Moutier-Saint-Jean near Dijon in France
- Saint Hunna, the self-sacrificing wife of a nobleman in Alsace, now in France
- Saint Nidger, Abbot of Ottobeuren Abbey in Bavaria, became Bishop of Augsburg in Germany
- Saint Mundus, an abbot who founded several monasteries in Argyll in Scotland
Post-Schism Orthodox saints
- Saint Mstislav-Theodore, Prince of Kiev
- Venerable Basil of Moldovita, Igumen of Moldovița Monastery and Wonderworker
- Venerable Dionysius of Pereyaslavl-Zalessky, monk of the Nikitsky Monastery
- Hieromartyr Ananias of Lacedaemonia, Metropolitan Bishop of Lacedaemonia
- Basil of Poiana Mărului
- Righteous Daniel of Achinsk, Siberia
New martyrs and confessors
- New Hieromartyr Alexander Gnevushev, Priest
Other commemorations
- Repose of Hieroschemamonk Michael of Valaam and Pskov Caves, the last Elder of Valaam
- Repose of Bishop Stephen of Kaluga