October 31 (Eastern Orthodox liturgics)
October 30 - Eastern Orthodox liturgical calendar - November 1
All fixed commemorations below are observed on November 13 by Eastern Orthodox Churches on the Old Calendar.
For October 31st, Orthodox Churches on the Old Calendar commemorate the Saints listed on October 18.
Saints
Apostles of the Seventy: Stachys, Amplias, Urban, Narcissus, Apelles and Aristobulus Martyr Epimachus of Pelusium, at Alexandria- Saint Maura of Constantinople
- Martyrs Epimachus the Roman and his companion Gordianos
- Saint Jacob of Nisibis the Worderworker, Bishop of Antiochia Mygdoniae
- Martyrs Seleucius and Stratonica his wife, myrrh-gushers.
- Martyrs Stephen, Barnabas, Trophimus, Dorymedon, Cosmas, Damian, Sabbas, Bassa, Abramios, and others with them.
- The Holy Twelve Daughters.
- The Holy Three Martyrs of Melitene.
- The Holy Child Martyr.
Pre-Schism Western saints
- Saint Quentin, martyr.
- Saint Erth
- Monk-martyr Foillan, Irish missionary, of Burgh Castle and Fosse
- Saint Antoninus, called Fontana, Archbishop of Milan, Confessor
- Saint Begu, a nun at Hackness in Yorkshire in England
- Saint Notburga, a nun at the convent of St Mary in the Capitol in Cologne in Germany
- Saint Arnulf, a monk at Novalese in Piedmont in Italy, martyred by the Saracens
- Saint Wolfgang of Regensburg, Bishop of Regensburg
Post-Schism Orthodox saints
- Venerable Spyridon and Nicodemus the Prosphora-bakers, of the Kiev Caves
- Saint Anatolius, recluse of the Near Caves in Kiev
- 100,000 Martyrs of Tbilisi slain under Jalal al-Din
- New Martyr Nicholas of Chios
- Righteous Petro Kalnyshevsky, Koshevoy-Commander of the Zaporozhian Cossacks
New martyrs and confessors
New Hieromartyr John Kochurov, Archpriest, of Chicago and St. Petersburg, First Hieromartyr of the Bolshevik Yoke- New Hieromartyr Leonid, Abbot of the Sovlvychegodsk Monastery, Vologda
- New Hieromartyrs :
- New Martyr Jacob Blatov
- New Hieromartyr Innocent, Hierodeacon, of Buygorod, Volokolamsk
Other commemorations
- Commemoration of an Anonymous Apologist, under Julian the Apostate
- Consecration of the Patriarchal Prayer Chapel.
- Martyrdom of José Muñoz Cortés, keeper of the "Montreal" copy of the Panagia Portaitissa icon, in Athens