August 12 (Eastern Orthodox liturgics)
August 11 - Eastern Orthodox liturgical calendar - August 13
All fixed commemorations below are observed on August 25 by Orthodox Churches on the Old Calendar.
For August 12, Orthodox Churches on the Old Calendar commemorate the Saints listed on July 30.
Feasts
- Afterfeast of the Transfiguration of Our Lord, God, and Savior Jesus Christ.
Saints
- Hieromartyr Alexander of Comana, Bishop of Comana
- Martyrs Pamphilus and Capito, by the sword Martyrs Anicetus and Photius, and others, of Nicomedia
- Holy 12 soldier-martyrs of Crete, by the sword.Venerable Pallamon of Egypt, instructor of St. Pachomius the Great.
- Venerable Saints Sergius and Stephen, peacefully.
- Venerable Castor, peacefully.
Pre-Schism Western saints
- Martyrs Hilaria, Digna, Euprepia, Eunomia, Quiriacus, Largio, Crescentian, Nimmia, Juliana and Companions
- Saint Euplus of Catania )
- Saint Gracilian and Felicissima
- Saint Cassian of Benevento, Bishop of Benevento
- Saint Eusebius of Milan, a Greek by birth, was Bishop of Milan in Italy for sixteen years, he opposed Eutychianism
- Saint Herculanus of Brescia, Bishop of Brescia in Italy
- Saint Molaise of Devenish
- Saint Muredach, first Bishop of Killala and founder of Innismurray
- Saint Seigine, Abbot of Iona
- Saint Porcarius, Abbot of Lérins, and 500 Companions, massacred by the Saracens
- Saint Jambert, fourteenth Archbishop of Canterbury
- Saint Merewenna, the local saint of Marhamchurch near Bude in Cornwall.
- Saint Ust. The town of St Just, a few miles from Penzance in Cornwall, is named after this hermit.
Post-Schism Orthodox saints
New Hieromartyrs of David Gareja Monastery, slain by the Dagestanis :New martyrs and confessors
New Hieromartyrs of the Belogorsk St. Nicholas Monastery (Perm) :- New Hieromartyr Basil Infantiev, Priest
- New Hieromartyrs Leonidas Biryukovich, John Nikolsky, and Nicholas Dobroumov, Priests
- New Martyr Eudocia Safronova
Other commemorations
- Translation of relics of St. Eadwold of Cerne, hermit of Cerne.