The names below are taken from the website's existing commemorations register. This is not yet a comprehensive comparison against every commemoration in the Greek Liturgical Texts edition. Collective groups and feasts may appear as a single entry; a listed entry is not necessarily one individual saint.
1 October
Julian (Old Calendar)saint
The Protection of our Most Holy Lady the Mother of God and Ever-Virgin Mary
apostle
Apostle Ananias of the Seventy
venerable
Venerable Romanus the Melodist, “Sweet-Singer”
venerable
Venerable Savva, Abbot of Vishera, Novgorod
martyr
Martyr Domninus of Thessalonica
martyr
Martyr Michael, Abbot in Armenia, and 36 Fathers with him
venerable
Venerable John (Koukouzelis) the Hymnographer of Mount Athos
venerable
Venerable Gregory Domesticus of the Great Lavra, Mount Athos
saint
“Pskov-Protection” Icon of the Mother of God
feast
Equals of the Apostles, Emperor Mirian and Empress Nana of Georgia; Saint Sidonia; the Commemoration of the apparition of the Pillar with the Robe of the Lord under it at Mtskheta in Georgia
saint
Icon of the Mother of God of Gerbovets
saint
Icon of the Mother of God of Barsk
saint
Icon of the Mother of God of Kasperov
hierarch
Saint Melchizedek I, Catholicos-Patriarch of All Georgia
saint
“Terebovlya” Icon of the Mother of God
saint
Saint Joseph of Bisericani Monastery (late XV century)
2 October
Julian (Old Calendar)hieromartyr
Hieromartyr Cyprian, Virgin Martyr Justina, and Martyr Theoctistus, of Nicomedia
saint
Blessed Andrew the Fool-For-Christ at Constantinople
saint
Repose of the Holy Right-believing Princess Anna of Kashin
venerable
Venerable Cassian of Uglich
saint
Martyrs David and Constantine, Princes of Georgia
saint
Righteous Admiral Theodore Ushakov of the Russian Naval Fleet
3 October
Julian (Old Calendar)hieromartyr
Hieromartyr Dionysius the Areopagite, Bishop of Athens
saint
Martyrs Rusticus the Presbyter and Eleutherius the Deacon
venerable
Venerable Dionysius the Recluse of the Kiev Caves
hierarch
Saint John the Chozebite, Bishop of Caesarea, Palestine
venerable
Venerable Hesychius of Mount Horeb
saint
Saint Damaris of Athens
4 October
Julian (Old Calendar)hieromartyr
Hieromartyr Hierotheus, Bishop of Athens
hierarch
Uncovering of the relics of Saint Gurias, first Archbishop of Kazan, and Saint Barsanuphius, Bishop of Tver
saint
Synaxis of the Hierarchs of Kazan
saint
Right-believing Prince Vladimir Yaroslavich of Novgorod
venerable
Venerable Helladius of the Kiev Near Caves
venerable
Venerable Onesimus of the Kiev Near Caves
venerable
Venerable Ammon the recluse of the Kiev Caves
saint
Martyrs Gaius, Faustus, Eusebius, and Chaeremon, of Alexandria
martyr
Martyr Peter of Capitolias
martyr
Martyr Domnina with her daughters of Syria
venerable
Venerable Ammon
venerable
Venerable Paul the Simple of Egypt
martyr
Martyr Callisthene and her father Audactus of Ephesus
saint
Saint Stephen Stiljianovitch of Serbia
martyr
Martyr Evdemoz, Catholicos of Georgia
saint
Saint Elena of Serbia
saint
Saints Jonah and Nectarius of Kazan
5 October
Julian (Old Calendar)martyr
Martyr Charitina of Amisos
saint
Synaxis of the Hierarchs of Moscow
venerable
Venerable Damian the Healer, Jeremiah, and Matthew, Clairvoyants, of the Kiev Caves
saint
Saint Charitina, Princess of Lithuania
hieromartyr
Hieromartyr Dionysius, Bishop of Alexandria
martyr
Martyr Memelchtha of Persia
saint
Saint Gregory of Chandzoe, Georgia
venerable
Venerable Eudokimos of Vatopedi Monastery on Mount Athos
saint
Righteous Methodia of Kimolos
venerable
Venerable Fathers and Mothers of the Klarjeti Wilderness
6 October
Julian (Old Calendar)apostle
Glorification of Saint Innocent, Metropolitan of Moscow, Enlightener of the Aleuts, Apostle to the Americas
apostle
Holy, Glorious Apostle Thomas
martyr
Monastic Martyr Macarius of Saint Anne Skete, Mount Athos
saint
“O All-Hymned Mother” Icon of the Mother of God
7 October
Julian (Old Calendar)saint
Martyrs Sergius and Bacchus in Syria
venerable
Venerable Sergius, Abbot of Nurma, disciple of Venerable Sergius of Radonezh, Vologda
venerable
Uncovering of the relics of Venerable Martinian, Abbot of Belozersk
saint
Martyrs Julian the Presbyter and Caesarius the Deacon at Terracina
martyr
Martyr Pelagia of Tarsus
martyr
Martyr Polychronius the Presbyter
saint
99 Martyred Fathers of Crete
saint
“Tenderness” Icon of the Mother of God
venerable
Venerable Joseph the Elder and Wonderworker of Khevi, Georgia
8 October
Julian (Old Calendar)venerable
Venerable Pelagia the Penitent
venerable
Venerable Dositheus, Abbot of Verkneostrov, Pskov
venerable
Venerable Tryphon, Abbot of Vyatka
venerable
Venerable Thais of Egypt
martyr
Virgin Martyr Pelagia of Antioch
martyr
Monastic Martyr Ignatius the Monk of Bulgaria
9 October
Julian (Old Calendar)hierarch
Glorification of Saint Tikhon, Patriarch of Moscow and All Russia, Enlightener of North America
apostle
Apostle James, son of Alphaeus
venerable
Venerable Andronicus, and his wife Athanasia, of Egypt
saint
Righteous Forefather Abraham
saint
Righteous Lot
saint
Martyrs Juventius and Maximus at Antioch
confessor
Saint Publia the Confessor, Deaconess of Antioch
venerable
Venerable Peter the former soldier
hieromartyr
Hieromartyr Dionysius of Paris, Bishop
saint
Icon of the Mother of God of Korsun
saint
“Assuage My Sorrows” Icon of the Mother of God
saint
Saint Stephen of Serbia, “the blind one”
10 October
Julian (Old Calendar)saint
Martyrs Eulampius and Eulampia, at Nicomedia, and 200 Martyrs with them
hierarch
Saint Amphilochius, Bishop of Vladimir, Volhynia
saint
Synaxis of the Saints of Volhynia
saint
Blessed Andrew of Totma the Fool-For-Christ
martyr
Martyr Theotecnus of Antioch
saint
Saint Bassian of Constantinople
confessor
Saint Theophilus the Confessor of Bulgaria
venerable
Venerable Ambrose of Optina
hieromartyr
Hieromartyr and Metropolitan of Moscow and Krutitsy, Peter Polyansky
saint
Icon of the Mother of God “of the Akathist” of Zographou Monastery
saint
26 Monastic Martyrs of Zographou Monastery on Mount Athos
11 October
Julian (Old Calendar)venerable
Venerable Philotheus, Patriarch of Constantinople
apostle
Apostle Philip of the Seventy, One of the Seven Deacons
confessor
Saint Theophanes the Confessor and Hymnographer, Bishop of Nicea
venerable
Venerable Theophanes the Faster of the Kiev Near Caves
venerable
Venerable Leonid of Optina
venerable
Synaxis of the Venerable Fathers of Optina
saint
Virgin Martyrs Zenaida and Philonilla, of Tarsus in Cilicia
feast
Commemoration of the Miracle of the Icon of Our Lord Jesus Christ in Beret
venerable
Venerable Ethelburga
12 October
Julian (Old Calendar)saint
Martyrs Probus, Tarachus, and Andronicus, at Tarsus in Cilicia
hierarch
Saint Cosmas the Hymnographer, Bishop of Maiuma
venerable
Venerable Amphilochius, Abbot of Glushetsa
martyr
Martyr Domnina of Anazarbus
hierarch
Saint Martin the Merciful, Bishop of Tours
saint
“Jerusalem” Icon of the Mother of God
martyr
Saint Edwin, King and Martyr
saint
Icon of the Mother of God of Rudens
saint
Translation from Malta to Gatchina: of a Particle of the Life Giving Cross, the Filersk Icon of the Mother of God, and the relic of the Right Hand of John the Baptist
martyr
New Martyr John, Archbishop of Riga and Latvia
saint
Saint Tarasius of Glushetsa
saint
Saint Macarius, Abbot of Glushetsa
saint
Icon of the Mother of God of Yaroslav-Smolensk
saint
Icon of the Mother of God of Kaluga
13 October
Julian (Old Calendar)saint
Commemoration of the Holy Fathers of the Seventh Ecumenical Council
saint
Martyrs Carpus, Papylus, Agathadorus, and Agathonica, at Pergamum
venerable
Venerable Benjamin of the Kiev Caves
martyr
Martyr Florentius of Thessalonica
martyr
Martyr Benjamin the Deacon of Persia
confessor
Saint Nikḗtas the Confessor of Paphlagonia
martyr
New Martyr Zlata of Meglena, Bulgaria
saint
Translation of the Iveron Icon of the Mother of God to Moscow
saint
“Seven Lakes” Icon of the Mother of God
hierarch
Saint Anthony, Metropolitan of Chqondidi, and Saint Jacob, Elder of Chqondidi
14 October
Julian (Old Calendar)saint
Martyrs Gervasius, Nazarius, Protasius, and Celsus of Milan
venerable
Venerable Paraskevi (Petka) of Serbia
venerable
Venerable Nicholas Sviatosha Prince of Chernigov, and Wonderworker of the Kiev Near Caves
hieromartyr
Hieromartyr Silvanus of Gaza
saint
Icon of the Mother of God of Yakhrom
15 October
Julian (Old Calendar)venerable
Venerable Euthymius the New of Thessalonica, and Monk of Mount Athos
martyr
Martyr Lucian the Presbyter of Antioch
hierarch
Saint John, Bishop of Suzdal
hieromartyr
Hieromartyr Lucian the Presbyter of the Kiev Caves
saint
Martyrs Sarbelius and Bebaia of Edessa
hierarch
Saint Sabinus, Bishop of Catania
saint
“Multiplier of Wheat” Icon of the Mother of God
16 October
Julian (Old Calendar)feast
Martyr Longinus the Centurion, who stood at the Cross of the Lord
venerable
Venerable Longinus the Gatekeeper of the Kiev Caves
venerable
Venerable Longinus of Yarenga
martyr
Martyr Longinus of Asistavi
saint
Saint Eupraxia, Princess of Pskov
saint
Saint Domna of Tomsk
17 October
Julian (Old Calendar)prophet
Prophet Hosea
martyr
Monastic Martyr Andrew of Crete
venerable
Venerable Anthony, Abbot of Leokhnov, Novgorod
saint
Martyrs and Unmercenaries Cosmas and Damian in Cilicia, and their brothers, Leontius, Anthimus, and Eutropius
hierarch
Translation of the relics of Saint Lazarus “of the Four Days in the Tomb”, Bishop of Kiteia, Cyprus
saint
“A Virgin Before and After Giving Birth” Icon of the Mother of God
saint
“Deliverer” Icon of the Mother of God
saint
Saint Joseph, Catholicos of Georgia
martyr
Martyr Kozman
martyr
Martyr Susanna, Queen of Georgia
18 October
Julian (Old Calendar)apostle
Apostle and Evangelist Luke
martyr
Martyr Marinus the Elder at Anazarbus
venerable
Venerable Julian the Hermit of Mesopotamia
venerable
Venerable Joseph the Wonderworker, Igumen of Volokolamsk
saint
Saint James the Deacon
saint
Saint Peter of Cetinje
saint
Saint David of Serpukhov
saint
"Machairotissa" Icon of the Mother of God
19 October
Julian (Old Calendar)prophet
Prophet Joel
martyr
Martyr Varus, and seven Monastic Martyrs with him
venerable
Translation of the relics of Venerable John, Abbot of Rila, Bulgaria
saint
Blessed Cleopatra with her son John, in Egypt
hieromartyr
Hieromartyr Sadoc (Sadoth), Bishop of Persia, and 128 Martyrs with him
venerable
Venerable Prochorus of Pcinja
20 October
Julian (Old Calendar)saint
Greatmartyr Artemius at Antioch
saint
Righteous Child Artemius of Verkola
venerable
Venerable Gerasimus the New Ascetic of Cephalonia
venerable
Venerable Matrona of Chios
saint
Icon of the Mother of God of Filersk
hieromartyr
The Uncovering of the Relics of the Hieromartyr Nicodemus, Bishop of Belgorod
21 October
Julian (Old Calendar)venerable
Venerable Hilarion the Great
hierarch
Translation of the relics of Saint Hilarion, Bishop of Meglin in Bulgaria
venerable
Venerable Hilarion the Schemamonk of the Kiev Caves
venerable
Venerable Hilarion, Abbot of Gdov and Pskov Lake
venerable
Venerable Theophilus and Jacob, Abbots of Omutch, Pskov
saint
Martyrs Gaius, Dasius, and Zoticus at Nicomedia
venerable
Venerable Philotheus of Dionysiou of Mount Athos
venerable
Venerable Bessarion Sarai the Confessor in Romania
confessor
Saint Sophronius, Confessor of Ciorara, Romania
martyr
Martyr Oprea of Salistie in Romania
hierarch
Saint Hilarion, Metropolitan of Kiev
martyr
Martyr Moses (Macinic) the Confessor
saint
Saint John of Galesh
martyr
New Martyr John of Monemvasia
22 October
Julian (Old Calendar)hierarch
Saint Averkios the Wonderworker, Bishop of Hieropolis, Equal of the Apostles
saint
7 Holy Youths “Seven Sleepers” of Ephesus
hieromartyr
Hieromartyr Alexander, Bishop of Adrianopolis, and the Martyrs Heraclius, Anna, Elizabeth, Theodota, and Glyceria
saint
Commemoration of the Kazan Icon of the Mother of God and the deliverance from the Poles
saint
Icon of the Mother of God of Andronicus
saint
Saints Paul and Theodore of Rostov
venerable
Venerable Lot of Egypt
23 October
Julian (Old Calendar)saint
Saint Macarius the Roman of Mesopotamia
feast
Apostle James, the Brother of the Lord
saint
Translation of the relics of Blessed James of Borovichi, Wonderworker of Novgorod
hierarch
Saint Ignatius, Patriarch of Constantinople
venerable
Venerable Elisha of Lavreshev
24 October
Julian (Old Calendar)martyr
Martyr Arethas and 4,299 Martyrs with him
venerable
Venerable Arethus the Recluse of the Kiev Near Caves
venerable
Venerable Sisoes the Recluse of the Kiev Near Caves
venerable
Venerable Theophilus the Recluse of the Kiev Near Caves
saint
Blessed Elesbaan, King of Ethiopia
martyr
Martyr Syncletica and her two daughters
hierarch
Saint Athanasius, Patriarch of Constantinople
saint
“Joy of All Who Sorrow” Icon of the Mother of God
saint
Saint John, Hermit of Pskov
25 October
Julian (Old Calendar)saint
Martyrs Marcian and Martyrius, the Notaries of Constantinople
venerable
Venerable Martyrius the Deacon, Recluse of the Kiev Caves
martyr
Martyr Anastasius the Fuller at Salona in Dalmatia
apostle
Saint Tabitha the Widow, raised from the dead by the Apostle Peter
26 October
Julian (Old Calendar)saint
Holy, Glorious Demetrios the Myrrh-gusher of Thessaloniki
saint
Commemoration of the Great Earthquake at Constantinople
hierarch
Saint Theophilus of the Kiev Caves, Bishop of Novgorod
martyr
Martyr Lupus
venerable
Venerable Athanasius of Medikion Monastery
martyr
Monastic Martyr Joseph of Dionysiou, Mount Athos
saint
Saint Demetrius of Tsilibinsk
27 October
Julian (Old Calendar)saint
Righteous Mother Olga of Kwethluk–Tanqilria Arrsamquq–Wonderworker, Matushka of All Alaska
martyr
Martyr Nestor of Thessalonica
venerable
Venerable Nestor the Chronicler of the Kiev Caves
saint
Uncovering of the relics of Saint Andrew, Prince of Smolensk
saint
Martyrs Capitolina and Eroteis of Cappadocia
saint
Saint Claudia Procula
saint
Martyrs Mark, Soterikhos, and Valentine
saint
“The Sign” Icon of the Mother of God
saint
Saint Demetrius of Basarabov
saint
Saint Nestor (not the Chronicler) of the Far Kiev Caves
hierarch
Hierarch Alexander, Bishop of Guria and Samegrelo
28 October
Julian (Old Calendar)feast
Holy Protection of the Most Holy Theotokos (Greek Church commemoration on October 28; also observed October 1)
venerable
Venerable Stephen the Hymnographer of Saint Savva Monastery
hierarch
Repose of Saint Arsenius, Archbishop of Serbia
saint
Greatmartyr Paraskevi of Iconium
venerable
Repose of Venerable Job the Wonderworker, Abbot of Pochaev
hierarch
Saint Demetrius (Dimitri), Metropolitan of Rostov
saint
Martyrs Africanus, Terence, Maximus, Pompeius, and 36 others, of Carthage
saint
Martyrs Terence and Neonila, and their children
hieromartyr
Hieromartyr Cyriacus, Patriarch of Jerusalem
venerable
Venerable John the Chozebite
martyr
Martyr Neophytus of Urbin, Georgia
venerable
Venerable Athanasius the Younger, Patriarch of Constantinople
saint
Saint Arsenius of Cappadocia
29 October
Julian (Old Calendar)martyr
Monastic Martyr Anastasia of Rome
venerable
Venerable Abramius the Recluse, and his niece, Blessed Mary, of Mesopotamia
venerable
Venerable Abramius, Archimandrite of Rostov
martyr
Martyr Claudius, Asterius, Neon, and Theonilla of Aegæ in Cilicia
saint
Righteous Anna of Constantinople
martyr
Monastic Martyr Timothy of Esphigmenou, Mount Athos
saint
Saint Serapion of Zarzma
saint
Saint Melitina
30 October
Julian (Old Calendar)hieromartyr
Hieromartyr Zenobios and his sister Zenobia, of Aegæ in Cilicia
apostle
Apostle Tertius of the Seventy
apostle
Apostle Mark of the Seventy
apostle
Apostle Justus of the Seventy
apostle
Apostle Artemas of the Seventy
hieromartyr
Hieromartyr Marcian, Bishop of Syracuse
martyr
Martyr Eutropia of Alexandria
martyr
Martyr Anastasia of Thessalonica
saint
Saint Stephen Milutin of Serbia
venerable
Venerable Dragutin (Theoctistus in Monasticism) of Serbia
saint
Saint Helen of Serbia
saint
Ozeryana Icon of the Mother of God
saint
Saint Jotham Zedgenidze
31 October
Julian (Old Calendar)saint
Priestmartyr John Kochurov
saint
Holy Apostles Stakhys, Apelles, Amplias, Urban, and Narcissus of the 70
apostle
Apostle Aristobulus of the Seventy
apostle
Apostle Epimachus of Alexandria
venerable
Venerable Spyridon and Nicodemus the Prosphora-bakers, of the Kiev Caves
venerable
Venerable Maura of Constantinople
saint
100,000 Martyrs of Tbilisi by the Mongols