thumb|The [[Eastern Orthodox Church|Eastern Orthodox cross]]
July 13 - Eastern Orthodox Church calendar - July 15
All fixed commemorations below are celebrated on July 27 by Old Calendar.
For July 14th, Orthodox Churches on the Old Calendar commemorate the Saints listed on July 1.
Saints
- Apostle Aquila of the Seventy (1st century), and St. Priscilla (1st century) <small>(see also: February 13, July 8)</small>
- Martyr Justus, a soldier martyred in Rome (1st century)
- Saint Heraclius, Patriarch of Alexandria, first called by the term "Pope" (246)
Pre-Schism Western saints
- Saint Felix of Como, the first Bishop of Como in Italy, he was a friend of St Ambrose (c. 390)
- Saint Optatian (Ottaziano), Bishop of Brescia in Italy c. 451-505 (c. 505)
- Saint Marcellinus (Marchelm, Marculf), Priest, of Utrecht (c. 762)
Post-Schism Orthodox saints
- Saint Stephen of Makhrishche, founder of Makhrishche Monastery in Vologda (1406)
- Venerable Nicodemus of Mt. Athos, spiritual writer (1809)
- Saint Longinus, Hiero-Schemamonk of Svyatogorsk Monastery (1882)
- New Hieromartyr Nicholas Poretsky, Priest (1933)
- Uncovering of the relics (1993) of St. Theophilus, Fool-for-Christ, of Kiev (1853)
