| Date | Saints and feasts | Name days |
|---|
| October 1 | Protection of the Theotokos, Ananias the Apostle, Romanos the Melodist, John Koukouzelis and 2 more | Maria, Mary, Maro, Ananias, Ananiah, Romanos, Romanus, Roman, Romana |
| October 2 | Cyprian and Justina, Theophilos the Confessor, George the New Martyr of Karatzasou, Theodore Gavras the Great Martyr and 2 more | Kyprianos, Cyprian, Ioustini, Justina, Justine, Theophilos, Theofilos, Theophilus, Theophilia |
| October 3 | Dionysios the Areopagite, Damaris of Athens, Rusticus and Eleutherius, Theoktistos the Martyr and 2 more | Dionysios, Dionysis, Denis, Dionisis, Dionysius, Dennis, Damaris |
| October 4 | Hierotheus of Athens, Domnina and her daughters Bernike and Prosdoke, John Lampadistis, Peter of Capitolias and 2 more | Hierotheos, Ierotheos, Domnina, Bernike, Berenice, Berniki, Veroniki, Veronica, Veronika, Prosdoke and 2 more |
| October 5 | Charitine, Methodia of Kimolos, Hermogenes the Hieromartyr, Mamelchtha of Persia and 2 more | Charitine, Haritini, Charitini, Methodia, Ermogenis, Hermogenes, Ermogenes |
| October 6 | Thomas the Apostle, Erotheis the Martyr, Makarios of Kios, Kendeas the Wonderworker and 2 more | Thomas, Tomas, Thoma, Tommy, Tom, Kendeas |
| October 7 | Sergios and Vakchos, Polychronios the Hieromartyr, John the Hermit and the 98 Fathers of Crete, Julian and Caesarius of Terracina and 1 more | Sergios, Sergey, Serge, Sergio, Sergius, Polychronios, Polychronis, Polichronis, Chronis, Polychronia |
| October 8 | Pelagia, Pelagia the Virgin of Antioch, Thais of Egypt, Ignatios the New Martyr of Bulgaria and 2 more | Pelagia, Pelayia, Taisia, Thais, Taisiya |
| October 9 | James the Apostle of Alphaeus, Andronikos and Athanasia, Abraham and Lot the Righteous, Poplia the Confessor and 2 more | Iakovos, James, Jacob, Andronikos, Andronicus, Andronicos, Athanasia, Avraam, Abraham, Abram and 2 more |
| October 10 | Eulampios and Eulampia, Theophilos and Longinus the Stylite, Bassianos of Constantinople, Ambrose of Optina and 2 more | Evlambios |
| October 11 | Philip the Apostle (Deacon), Fathers of the Seventh Ecumenical Council, Theophanes the Branded, Nektarios, Arsakios and Sisinios of Constantinople and 3 more | Filippos, Filipis, Philip, Philippos, Phil, Filippo, Theophanis, Theofanis, Theophanes, Fanis and 6 more |
| October 12 | Probus and Tarachos, Symeon the New Theologian, Domnina of Anazarbus, Anastasia the Virgin and 3 more | Provos |
| October 13 | Carpus and Papylus, Chrysi the New Martyr, Benjamin the Deacon, Niketas the Confessor and 2 more | Karpos, Chrysi, Chryssi, Chrysa, Chryssa, Chrysoula, Zlata, Chryse, Veniamin, Benjamin and 1 more |
| October 14 | Nazarios, Gervase, Prothase, Kosmas the Melodist, Paraskevi the New of Epivates, Silvanos of Gaza and 2 more | Nazarios, Petka |
| October 15 | Lucian of Antioch, Euthymios the New of Thessalonica, Savinos of Catania, Barses of Edessa and 2 more | Loukianos, Lucian |
| October 16 | Longinus the Centurion, Leontios, Dometios, Terentios and Domninos, Malos the Hermit, John of Tourkolekas and 2 more | Longinos, Longin |
| October 17 | Osee the Prophet, Andrew of Crete the Monk-Martyr, Kosmas and Damianos of Arabia, Lazarus the Four-Days-Dead (Translation of Relics) and 2 more | Osee, Hosea, Lazaros, Lazarus, Lazar, Isidora, Neophyte, Neofyti |
| October 18 | Luke the Evangelist, Marinos the Elder, Julian the Hermit of the Euphrates, Gabriel and Kyrmidoles and 2 more | Loukas, Luke, Luca, Lucas, Lukas, Marinos, Marinus |
| October 19 | Joel the Prophet, Cleopatra the Righteous, Varus and the Six Monk-Martyrs, Sadoth of Persia and 2 more | Ioel, Joel, Cleopatra, Kleopatra |
| October 20 | Artemon of Seleucia, Matrona of Chios, Gerasimos of Cephalonia (Translation of Relics), Zebinas, Germanos, Nikephoros and Antoninos and 2 more | Artemios, Artemis, Matrona, Gerasimos, Gerasimus, Makis, Gerasim, Gerasimoula |
| October 21 | Hilarion the Great, Philotheos of Athos, Theodote and Socrates, John of Monemvasia and 3 more | Ilarion, Ilarionas, Philotheos, Filotheos, Philotheus, Sokratis, Socrates, Theodoti, Theodote, Ursula |
| October 22 | Abercius of Hieropolis, Alexander of Adrianople, Lot of Egypt, Rufus the Venerable and 2 more | Averikios, Averki |
| October 23 | Ignatius, Patriarch of Constantinople, James the Brother of the Lord, Makarios the Roman, Petronios the Venerable and 2 more | Ignatios, Ignatius, Iakovos, Iakov, Jacob, James, Jakob, Jacovos |
| October 24 | Arethas of Najran, Sebastiane the Martyr, Mark, Soterichos and Valentine, Akakios the Presbyter and 2 more | Arethas, Sevastiani, Sebastiane, Sevasti, Sebastiana |
| October 25 | Tabitha, Markianos and Martyrios the Notaries, Anastasios the Fuller, George of Amastris and 2 more | Tabitha, Tavitha |
| October 26 | Demetrios the Great Martyr, Commemoration of the Great Earthquake, Loupos the Martyr, Joasaph of Dionysiou and 2 more | Dimitrios, Dimitris, Dimitri, Mimis, Takis, Demetrius, Demetrios, Jimmy, Dmitri, Dmitry and 8 more |
| October 27 | Nestor the Martyr, Prokla the Wife of Pilate, Capitolina and Erotheis, Kyriakos of Constantinople and 2 more | Nestoras, Nestor |
| October 28 | Terentios and companions, Protection of the Theotokos (Greek Observance), Stephen the Sabbaite, Athanasios I of Constantinople and 3 more | Terentios |
| October 29 | Anastasios the Younger, Anastasia the Roman, Abramios the Recluse and Mary, Melitine the Martyr and 3 more | Tasos, Anastasios, Anastasius, Anastasia, Natasa, Natassa, Tasoula, Tasia, Sia, Anastasie and 2 more |
| October 30 | Zenobios and Zenobia, Kleopas the Apostle, Tertius, Mark, Justus and Artemas, Eutropia the Martyr and 3 more | Zinobios, Zenobios, Kleopas, Cleopas, Cleophas, Eutropia, Evtropia, Eftropia |
| October 31 | Stachys the Apostle, Epimachos of Egypt, Nicholas the New Martyr of Chios, Apelles, Amplias, Urban, Narcissus and Aristobulus and 3 more | Stachys, Stratoniki, Stratonike |
