July 18 (Eastern Orthodox liturgics)
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.
Saints
Martyr Emilian of Silistra in Bulgaria- Martyr Markellos, roasted alive.
- Martyrs Dasius and Maron, by the sword.
- Martyrs Paul, Valentina and Theia, siblings, at Diocaesarea
- Martyr Hyacinth of Amastris Venerable Pambo, hermit of Egypt
- Great-martyr Athanasius of Klysma, Egypt
- Saint Barlaam, ascetic, of Bald Mountain, near Antioch in Syria
- Saint John the Confessor, Metropolitan of Chalcedon
- Saint Stephen II of Constantinople, Patriarch of Constantinople
Pre-Schism Western saints
- Martyr Symphorosa of Tivoli near Rome, and her seven martyred sons:
- Saint Marina of Orense, a martyr in Orense in Spain
- Virgin martyr Gundenis, martyred in Carthage in North Africa under Septimius Severus
- Saint Maternus, Bishop of Milan in Italy
- Saint Rufillus, first Bishop of Forlimpopoli in Emilia in Italy
- Saint Philastrius, born in Spain, he became Bishop of Brescia in Italy at the time of the Arian troubles
- Saint Goneri of Brittany, an exile from Britain to Brittany, where he lived as a hermit near Tréguier
- Saint Arnulf of Metz, a monk at Lérins, later Bishop of Metz
- Saint Eadburh of Bicester, a daughter of the pagan King Penda, she became a nun
- Saint Theneva, the mother of St Kentigern and patron-saint of Glasgow in Scotland together with him
- Saint Frederick of Utrecht, Bishop of Utrecht in the Netherlands, martyr bishop
- Saint Minnborinus of Cologne, born in Ireland, he became Abbot of St Martin's in Cologne in Germany
Post-Schism Orthodox saints
- Venerable John the Much-suffering, of the Kiev Caves
- Venerable saints Onesiphoros, Pammegistos, Pamphoditis, Paphnutios, Pegon, Polemios, Sozomenos, Soterichos and Photios, of the "300 Allemagne Saints" of Cyprus
- Venerable Pambo the Recluse of the Kiev Far Caves
- Saint Leontius, founder of Karikhov Monastery, in Novgorod
- Hieromartyr Cosmas, Hieromonk, of Gareji, Georgia
New martyrs and confessors
- New Hieromartyr Apollinarius, Hieromonk of the St. Nicholas Monastery, Verkhoturye New Martyrs Abbess Elizabeth (Romanova), Grand Duchess of Russia, and Nun Barbara, ''and those with them, at Alapaevsk''
Other commemorations
- Translation of the relics of Venerable Lazarus the Wonderworker, of Mt. Galesion.
- Icons of the Most Holy Theotokos "Tolga" and "Kaluga"
- Repose of Abbess Mavrikia and Abbess Zosima, both of Goritsy Convent.