thumb|The [[Eastern Orthodox Church|Eastern Orthodox cross]]
Sep. 18 - Eastern Orthodox liturgical calendar - Sep. 20
All fixed commemorations below celebrated on October 2 by Orthodox Churches on the Old Calendar.
For September 18th, Orthodox Churches on the Old Calendar commemorate the Saints listed on September 6.
Saints
- Martyrs Trophimus, Sabbatius, and Dorymedon of Synnada (276-282) <small>(see also: October 31)</small>
- Martyr Zosimas, hermit of Cilicia (4th century)
Pre-Schism Western saints
- Saint Felix and Constantia, martyrs under Nero in Nocera near Naples, in Italy (1st century)
