July 17 - Eastern Orthodox Church calendar - July 19
All fixed commemorations below are celebrated on July 31 by Old Calendar.
For July 18th, Orthodox Churches on the Old Calendar commemorate the Saints listed on July 5.
Martyr Emilian of Silistra in Bulgaria (363)
Martyr Markellos (Marcellus, Marcel), roasted alive.
Martyrs Dasius and Maron, by the sword.
Martyrs Paul, Valentina and Theia (Theis, Thoe), siblings, at Diocaesarea (363) (see also: July 16)
Martyr Hyacinth of Amastris (4th century)
Venerable Pambo, hermit of Egypt (4th century)
Great-martyr Athanasius of Klysma, Egypt (4th century)
Saint Barlaam, ascetic, of Bald Mountain, near Antioch in Syria (6th century)
Saint John the Confessor, Metropolitan of Chalcedon (9th century)
Saint Stephen II of Constantinople, Patriarch of Constantinople (928)
Martyr Symphorosa of Tivoli near Rome, and her seven martyred sons:(c. 138)
Crescens, Julian, Nemesius, Primitivus, Justin, Stacteus, and Eugene, under the Emperor Hadrian.
Saint Marina of Orense (Marina of Águas Santas), a martyr in Orense in Spain (139)
Virgin martyr Gundenis, martyred in Carthage in North Africa under Septimius Severus (203)
Saint Maternus, Bishop of Milan in Italy (328)