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- Saints Nabor and Felix, martyrs in Milan in Italy under Diocletian (c. 304) West, before the Schism 12 July
- Prophet Nahum (7th century BC) 1 December
- Venerable Nahum of Ochrid, Enlightener of the Bulgarians (910) 20 June
- Saint Namadie (Namadia), wife of St Calminius, as a widow she became a nun at Marsat in France (c. 700) West, before the Schism 19 August
- Saint Namasius (Naamat, Namat, Namatius), twenty-second Bishop of Vienne in France (c. 599) West, before the Schism 17 November
- Saint Namatius (Namace), ninth Bishop of Clermont in France (c. 462) West, before the Schism 27 October
- Saint Namphamon and Companions, of Carthaginian descent, he was martyred with several compatriots at Madaura in Numidia in North Africa and called 'the... (c. 180) West, before the Schism 4 July
- Saint Namphasius (Namphrase), a hermit near Marcillac in France, after a military career (c. 800) West, before the Schism 12 November
- Saint Nanterius (Nantier, Nantère), Abbot of Saint Mihiel Abbey in Lorraine in France (1044) West, before the Schism 30 October
- Saints Narcissus and Crescendo, early martyrs in Rome (c. 260) West, before the Schism 17 September
- Saints Narcissus and Felix, a Bishop and his Deacon honoured as martyrs in the city of Girona in Catalonia, Spain (c. 307) West, before the Schism 18 March
- Hieromartyr Narcissus, Bishop of Jerusalem (c. 213) 7 August
- Saint Narnus, first Bishop of Bergamo in Italy West, before the Schism 27 August
- Martyr Narses (Nerses) of Persia, by the sword 9 December
- Martyrs Narses and Artemon, by the sword 9 November
- Virgin-martyr Natalia Baklanova (1938) 18 March
- Virgin-martyrs Natalia Yulianova and Alexandra Samoylovoy (1938) 9 March
- Martyr Natalios, by the sword 30 May
- Saint Natalis (Natale), Bishop of Milan in Italy (751) West, before the Schism 13 May
- Saint Natalis of Ulster, a monastic founder in the north of Ireland, he worked with Saint Columba (564) West, before the Schism 27 January
- Saint Natalis, a priest in Casale in Piedmont (6th century) West, before the Schism 3 September
- Saint Nathalan (Nachlan, Nauchlan), Bishop of Tullicht, Aberdeenshire, Scotland (678) West, before the Schism 19 January
- Saint Nathalan of Aberdeenshire (678) West, before the Schism 8 January
- Venerable Nathaniel of Nitria (6th century) 27 November
- Holy Apostle Nathaniel of the Twelve (Bartholomew) (1st century) 22 April
- Saint Nathy (Nath Í of Achonry, David), disciple of St Finian of Clonard (c. 610) West, before the Schism 9 August
- Nativity of St. John the Baptist and Forerunner 24 June
- Venerable Naucratius, Abbot of the Studion (848) 18 April
- Saint Naucratius, brother of St. Basil the Great (4th century) 8 June
- Saint Naum (Nahum) of Ochrid, Enlightener of the Bulgarians (910) 23 December
- Saint Nazaria, Schemanun, first abbess of Văratec Monastery, disciple of St. Basil of Poiana Mărului, St. Paisius Velichkovsky of Neamț, and St. Joseph of... (1814) 17 August
- Martyrs Nazarius and Celsus, martyrs in Milan in Italy under Nero (c. 68) West, before the Schism 28 July
- New Hieromartyrs Nazarius Gribkov, Basil Agafonikov, Basil Kolosov, Elijah Zachatesky, Basil Studnitsyn, Daniel Meshaninov, and Michael Zelentsovsky, Priests (1937) 26 November
- Saint Nazarius, a monk and Abbot of Lérins in France (c. 450) West, before the Schism 18 November
- Saint Nazarius, Abbot of Valaam Monastery (1809) 23 February
- Great-Martyrs Nazarius, Celsius, Gervasius and Protasius, of Milan (54-68) 14 October
- New Hieromartyrs Nazarius, Metropolitan of Kutaisi, Georgia 14 August
- Saint Neachtain, a relative of St Patrick of Ireland at whose repose he was present (5th century) West, before the Schism 2 May
- Saint Neadius (Neadios), Bishop and Wonderworker 16 May
- Saint Neagoe Basarab, Prince of Wallachia (1521) 26 September
- Martyr Neaniscus the Wise of Alexandria 10 June
- Martyr Nearchus, by fire (3rd century) 22 April
- Saint Nebridius, Bishop of Egara near Barcelona in Spain, a city since destroyed (c. 527) West, before the Schism 9 February
- Martyr Nectan of Hartland, in Devon, hermit (6th century) West, before the Schism 17 June
- Venerable Saint Nectarie (Crețu) the Protopsaltes, of Prodromou Skete (Nectarius the Vlach), hesychastic monk and a great chanter called the 'Nightingale of... (1899) 18 November
- Saints Nectarius (1550) and Theophanes (1544) the gate-keepers, brothers, of Meteora 17 May
- Saints Nectarius (397), Arsacius (405) and Sinisius (427), Archbishops of Constantinople and Ecumenical Patriarchs 11 October
- Venerable Nectarius (Nectarios, Nektarios) the Bulgarian of Bitol and Karyes, Mount Athos (1500) 5 December
- New Hieromartyr Nectarius (Trezvinsky), Bishop of Yaransk 23 July, 26 August
- Saint Nectarius of Auvergne (c. 300) West, before the Schism 9 December
- Saint Nectarius of Bitel (Nektarios of Bitola, Nektarij Bitolski) (1500) 15 December
- Venerable Nectarius of Optina, Elder, of Optina Monastery (1928) 29 April
- New Monk-martyr Nectarius of St. Anne's Skete, Mount Athos, at Vryoulla, Ephesus (1820) 11 July
- Saint Nectarius of Vienne, Bishop of Vienne (c. 445) West, before the Schism 5 May
- Saint Nectarius the Obedient of the Kiev Caves (12th century) 29 November
- Saint Nectarius, Archbishop of Tobolsk (1667) 15 January
- Saint Nectarius, Bishop of Autun in France, and a friend of St Germanus of Paris (c. 550) West, before the Schism 13 September
- Saint Nectarius, founder of Bezhetsk Monastery, Tver (1492) 3 April
- Venerable Neilos (Nilos, Nilus) Erichiotis the Sanctified (1334) 2 January
- Saint Nektarios (Kephalas) of Aegina, Metropolitan of Pentapolis and Wonderworker of Aegina (1920) 9 November
- Martyr Nemes (Nemo), by the sword 31 December
- Martyrs Nemesian, Felix, Lucius, another Felix, Litteus, Polyanus, Victor, Jader, Dativus and Companions (257) West, before the Schism 10 September
- Saints Nemesius and Lucilla, a deacon, and his daughter martyred in Rome under Valerian (c. 260) West, before the Schism 25 August
- Saint Nemesius, a saint venerated near Lisieux in France West, before the Schism 1 August
- Saint Nennius (Ninnidh), disciple of Saint Finian of Clonard, reckoned as one of the 'Twelve Apostles of Ireland' (6th century) West, before the Schism 17 January
- Venerable Nennocha (Ninnoca, Nennoc, Gwengustle), a holy virgin from Britain who followed Saint Germanus to France, becoming an abbess in Brittany at... (c. 467) West, before the Schism 4 June
- Saint Nennus (Nem Moccu Birn, Nenus, Nehemias), successor of St Enda as abbot of the monasteries of the Isles of Arran and Bute in Ireland (7th century) West, before the Schism 14 June
- Martyr Neon, by beheading 1 June
- New Hieromartyrs Neophyt Lyubimov and Anatoly Ivanovsky, Priests (1918) 17 October
- Venerable Saints Neophytes and Meletios of Stânișoara Monastery 3 September
- Saints Neophytos, Ignatios, Prokopios, and Neilos, founders of Machairas Monastery, Cyprus (1145, 1172) 13 December
- New Hieromartyrs Neophytus (Osipov), Archimandrite, of Moscow, and Sophronius (Nesmeyanov), Hieromonk, of Lozeva, Tver (1937) 21 October
- Saint Neophytus and Saint Stephen Urosica, of Serbia (14th century) 11 November
- Martyr Neophytus of Nicaea (305) 21 January
- Saint Neophytus of Vatopedi Monastery, Mount Athos (14th century) 21 January
- Saint Neophytus of Vatopedi, Mount Athos (14th century) 20 January
- Venerable Neophytus the Recluse of Cyprus, Wonderworker (1204) 24 January
- Hieromartyr Neophytus, bishop of Urbnisi, Georgia (7th century) 28 October
- Martyr Neophytus, by drowning 7 December
- Martyrs Neophytus, Gaius, and Gaianus 5 May
- Martyrs Neophytus, Zeno, Gaius, Mark, Macarius, and Gaianus, by fire 11 August
- Saint Neot, Hermit, in Cornwall (c. 877) West, before the Schism 31 July
- Saint Nephon the New Cenobiarch (1809) 28 December
- Saint Nepotianus, Bishop of Clermont in France (c. 388) West, before the Schism 22 October
- Saint Nepotianus, nephew of St Heliodorus, Bishop of Altino near Venice in Italy (395) West, before the Schism 4 May
- Martyr Nerdonus, by fire 24 October
- Saints Nereus and Achilleus the martyrs (100) 12 May
- Martyr Nerses 15 June
- Martyr Nesius, by whipping 27 February
- Saint Nessan (Neasán), a convert of St Patrick of Ireland, he became Abbot of Montgarth (Mountgarret, Mungret) in Wexford (5th century) West, before the Schism 25 July
- Venerable Nestor 26 April
- Saint Nestor (not the Chronicler) of the Kiev Caves (14th century) 28 October
- Saints Nestor and Arcadius, Bishops of Tremithous, in Cyprus (4th century) 7 March
- Hieromartyr Nestor of Magydos, Bishop of Magydos, at Perge in Pamphylia (c. 250) 28 February
- Martyr Nestor of Thessaloniki (306) 27 October
- Hieromartyrs Nestor the Bishop, and Tribiminus the Deacon, at Perge in Pamphylia (ca. 250) 2 March
- Venerable Nestor the Chronicler, of the Kiev Caves (1114) 27 October
- Venerable Nestor the Unlettered (not the Chronicler), of the Far Kiev Caves (14th century) 27 October
- Martyr Nestor, father of Martyr Conon of Isauria 5 March
- Martyrs Nestorianus (Nestor), Tribimius, Marcellus, and Anthony, of Perge in Pamphylia, by the sword (249-251) 1 March
- New Confessor Agapitus (Taube), Monk of Optina Monastery (1936) 5 July
- New Confessor Anna Ivashkina of Ryazan (1948) 27 January
- New Confessor Athanasius Andreyevich Saiko of Orel, Fool-for-Christ (1967) 22 April
- Venerable New Confessor Ekvtime (Euthymius) Kereselidze of Georgia (1944) 20 January
- New Confessor George (Gregory) Sedov (1960) 3 December
- New Confessor George Kossov of Orlov, Archpriest (1928) 26 August
- New Confessor Heraclius (Motyakh), Schemamonk, of Turkistan (1937) 28 May
- New Confessor Ilie Lăcătușu, Priest (1983) 22 July
- Venerable New Confessor Leonty Stasevich of Ivanovo, Archimandrite (1972) 27 January
- New Confessor Matrona Belyakova, Fool-for-Christ, of Anemnyasevo (1936) 16 July
- New Confessor Schema-abbess Sophia (Grineva) of Kiev (1941), and her priest Demetrius Ivanov (1934) 22 March
- New Confessor Sergius Pravdolyubov, Priest of Ryazan (1950) 5 December
- New Confessor Smaragda (Onishchenko), Abbess of Nezhinsk , Ukraine (1945) 28 December
- New Great Martyr John the New of Suceava (John of Trebizond), at Belgorod (Cetatea Alba) (1330-1340) 2 June
- New Great-martyr Apostolos of the town of St. Laurence, martyred at Constantinople (1686) 16 August
- New Hieomartyr Archimandrite Gregory (Grigol) Peradze of Georgia, who suffered in Auschwitz, Poland (1942) 23 November
- New Hieor-Confessor Varnava Nastić, Bishop of Hvosno (1964) 12 November
- New Hiero-confessor Agathangelus (Preobrazhensky), Metropolitan of Yaroslavl (1928) 3 October
- Venerable New Hiero-Confessor Alexander (Urodov), Archimandrite, of Sanaxar and Seven Lakes Monasteries (1961) 14 August
- Venerable New Hiero-Confessor Alexei Kabalyuk of Carpathia, Schema-Archimandrite, of Khust, Apostle of Carpatho-Russia (1947) 2 December
- New Hiero-confessor Alexis Kabaliuk, Schema-Archimandrite, of Khust, Carpatho-Russia (1947) 19 November
- New Hiero-confessor Anatole II (Potapov) "the Younger", Elder of Optina Monastery (1922) 30 July
- New Hiero-confessor Athanasius (Sakharov), Bishop of Kovrov (1962) 15 October
- New Hiero-confessor Barsanuphius (Yurchenko) of Kherson (1954) 4 October
- New Hiero-confessor Basil (Preobrazhensky), Bishop of Kineshma (1945) 31 July
- New Hiero-Confessor Bassian Pyatnitsky, Archbishop of Tambov (1940) 14 December
- New Hiero-confessor Dumitru Stăniloae, Priest, theology professor in Sibiu and Bucharest (1993) 4 October
- New Hiero-confessor Gabriel (Igoshkin), Archimandrite, of Melekess (Saratov), Confessor (1959) 5 October
- Venerable New Hiero-confessor Ignatius (Biryukov), Archimandrite, of the Aleksievo-Akatov Monastery in Voronezh (1932) 15 September
- New Hiero-confessor John Kalinin, Priest, of Olenevka (1951) 24 July
- Venerable New Hiero-confessor Leontius (Karpovich), Archimandrite, of Vilnius (1620) 24 September
- New Hiero-confessor Luke (Voino-Yasenetsky), Archbishop of Simferopol and Crimea and Surgeon, Unmercenary Wonderworker (1961) 29 May
- New Hiero-confessor Luke (Voino-Yasenetsky), Archbishop of Simferopol and Crimea, Surgeon, Unmercenary Wonderworker (1961) 11 June
- New Hiero-confessor Matthew, Hieromonk, of Yaransk (1927) 14 May
- New Hiero-confessor Maximus (Popov), Hieromonk, of Ryabash (Bashkiria) (1934) 17 June
- New Hiero-confessor Michael (Galushko), Schema-archimandrite, of Svyatogorsk Monastery (1961) 11 March
- New Hiero-confessor Nicholas (Mogilevsky), Metropolitan of Alma-Ata (1955) 12 October
- New Hiero-confessor Nicholas Pongelsky, Priest (1942) 24 July
- New Hiero-confessor Nikon (Belyaev), Hieromonk of Optina Monastery (1931) 25 June
- Venerable New Hiero-Confessor Paisie (Olaru) of Sihăstria, Hieroschemamonk of Sihăstria Monastery (1990) 2 December
- New Hiero-confessor Patrick (Petrov), hieromonk of Valaam Monastery (1933) 11 March
- New Hiero-confessor Peter Cheltsov, Archpriest, of Smolensk (1972) 30 August
- New Hiero-confessor Raphael (Sheichenko), Hieromonk of Optina Monastery (1957) 6 June
- New Hiero-confessor Rodion (Fyodorov), Archimandrite, of the Holy Trinity–St. Sergius Lavra (1933) 28 May
- New Hiero-confessor Roman Medved of Moscow, Archpriest (1937) 26 August
- New Hiero-confessor Schema-bishop Macarius (Vasiliev), at the Pskov Caves Monastery (1944) 1 April
- New Hiero-confessor Sebastian (Fomin), Schema-Archimandrite of Optina Monastery and Karaganda (1966) 6 April
- New Hiero-confessor Seraphim (Zagorovsky), Hieromonk, of Kharkov (1943) 30 September
- New Hiero-Confessor Theodosius (Ganitsky), Bishop of Kolomna (1937) 20 April
- New Hiero-confessor Tryphon of Svyatogorsk Monastery (1939) 1 May
- New Hiero-confessor Varnava Nastić of Bosnia, Bishop of Hvosno (1964) 30 October
- New Hiero-Confessor Venerable Sergius (Srebriansky), Archimandrite, of Tver (1948) 23 March
- New Hiero-confessor Victor (Ostrovidov), Bishop of Glazov (1934) 19 April
- New Hiero-confessor Vladimir (Terentiev), Abbot, of Zosima Hermitage (1933) 18 February
- New Hieroconfessor Ambrose Polyansky, Bishop of Kamenets-Podolsk (1932) 7 December
- New Hieroconfessor Arsenius Stadnitsky, Metropolitan of Tashkent and Turkestan (1936) 28 January
- New Hieroconfessor Dositheus Vasich, Metropolitan of Zagreb (1945) 31 December
- Venerable New Hieroconfessor George (Lavrov), Archimandrite, of Kaluga (1932) 21 June
- New Hieroconfessor John Kevroletin, Hieroschemamonk of Verkhoturye (1961) 14 January
- New Hieroconfessor Leontius Stasievich, Archimandrite of Jablechna, Poland, who reposed at Mikhailovsk (Ivanovo) (Russia) (1972) 28 January
- New Hieroconfessor Michael Soyuzov, Archpriest of Kronstadt (1922) 6 October
- New Hieroconfessor Nicholas Vinogradov, Archpriest, of Malakhovo, Yaroslavl (1948) 18 November
- New Hieroconfessor Theodore, Presbyter (1933) 28 January
- New Hieroconfessor Tikhon, Patriarch of Moscow and all Russia (1925) 25 March
- New Hieroconfessor Vladimir Khirasko, Archpriest of Minsk (1932) 11 January
- New Hieromartyrs (1938) 4 February, 13 February, 1 March, 9 March, 15 May, 7 June, 30 September, 8 October, 22 October, 31 October, 3 November, 7 November, 14 November, 2 December, 18 December
- New Hieromartyrs, at Petrograd (1922) 31 July
- New Hieromartyrs, Priests (1919) 11 January
- New Hieromartyrs, Priests, of Metropolitanate of Dabar-Bosnia and Mileševa (1941-1946) 11 July
- New Hieromartyrs/Hieroconfessors Nicholas, Priest of Tobolsk, Nicholas, Missionary of Moscow, and Nicholas, Priest of Novo-Nikolskaya (1942) 6 December
- New Martyrs, at Petrograd (1922) 31 July
- New Monastic Martyr Jeremiah Leonov of Valaam (1918) 1 January
- New New Hieromartyr Vladimir Kholodkovsky, Priest (1937) 31 July
- Venerable New Nun-Confessor Anna Stoliarova, Schemanun of Sreznevo, Ryazan (1958) 10 December
- New Nun-martyr Ioannikia (Kozhevnikova), Abbess of the Convent of the Entry of the Theotokos (Tikhvin) (1937) 20 November
- New Nun-martyr Maria (Lelyanova) of Gatchina (1932) 4 April
- New Nun-martyr Matushka Maria Lelyanova of Gatchina (1932) 26 January
- New Nun-martyr Philothea of Athens (1588) 19 February
- New Venerable Hieromartyr Euthymius, Abbot, and twelve monk-martyrs of Vatopedi Monastery, Mount Athos, who suffered martyrdom for denouncing the Latinizing... (1285) 4 January
- New Venerable Martyr Anastasius the Deacon of the Kiev Caves Monastery (12th century) 22 January
- New Venerable Martyr Ephraim, Elder of Obnora Monastery, Vologda, and six monks of Obnora whose relics are incorrupt (1538) 10 January
- New Venerable Martyr Gregory of Peć (17th-18th centuries) 22 January
- New Venerable Martyr Macarius of Saint Anne's Skete, Mount Athos, at Prusa (Kion) in Bithynia (1590) 6 October
- New Venerable Martyr Onuphrius Manassias of Gabrovo and Hilandar Monastery, Mount Athos, on Chios (1818) 4 January
- New Venerable Martyr Romanus of Karpenisi (Carpenision) and Kapsokalyvia, at Constantinople (1694) 5 January
- New Virgin Confessor Thecla Makusheva (1954) 10 December
- New Virgin Confessors Anna Ivashkina and Tatiana Byakirevoy (1948) 10 December
- New Virgin Martyr Antonina (Bryanskikh) (1937) 27 December
- New Virgin Martyr Eudocia (after 1937) 10 December
- New Virgin Martyr Eugenia Domozhirova, at Alma-Ata (1933) 5 January
- New Virgin Martyr Eugenia Lysova, Nun (1935) 4 November
- New Virgin Martyr Mary Danilova of Yaroslavl-Rostov (1946) 30 December
- New Virgin Martyr Militsa of Moscow (1938) 23 January
- New Virgin Martyr Mstislava Fokinoi (1938) 25 February
- New Virgin Martyr Vera Truks of Zhitomir (1942) 18 December
- New Virgin Martyrs Anthisa (Sysoeva) and Makaria (Saprykina) (1938) 26 December
- New Virgin Martyrs Augusta Zaschuk and Mary Laktionova (1938) 26 December
- New Virgin Martyrs Catherine Arskoy and Kyra Obolensky (1937) 4 December
- New Virgin Martyrs Eudokia and Ecaterine of Moscow (Ekaterine) (1938) 23 January
- New Virgin Martyrs Neollina, Domnina, and Parthena of Edessa, Macedonia (14th century) 12 January
- New Virgin-martyr Anna Ostroglazova (1937–1939) 10 November
- New Virgin-martyr Aquilina of Zagliveri, Thessalonica (1764) 27 September
- New Virgin-Martyr Helen of Sinope (18th century) 1 November
- New Virgin-Martyr Hermogenas Kadomtseva (1942) 28 May
- New Virgin-martyr Kyranna of Thessaloniki (1751) 28 February
- New Virgin-Martyr Pelagia Testovoy (1944) 21 October
- New Virgin-Martyrs 29 December
- New Woman Hieromartyr Tatiana Fomicheva (after 1937) 20 November
- Newly Revealed Martyrs Raphael (Archimandrite), Nicholas (Deacon), Irene (child), and Eleni (who was also called Susanna) of Lesbos, and those with them (1463) 9 April
- Newly-Revealed (1923) Hieromartyr Vlasios of Akarnania (Blaise), and those with him (1006) 7 July
- New Hieromartyr Nicander (Prusak), Hieromonk, of Yaroslavl (1918) 17 June
- Martyrs Nicander and Marcian, at Dorostolum in Moesia (297 or 303) 8 June
- New Hieromartyr Nicander Grivsky, Priest (1939) 24 September
- Martyr Nicander of Egypt (305) 15 March
- Saint Nicander, founder of Gorodnoezersk Monastery, Novgorod (1603) 4 November
- Venerable Nicander, hermit of Pskov (1581) 24 September
- Saint Nicander, hermit, of Pskov (1582) 25 March
- Saint Nicander, monk, of Gorodetsk, Nizhni-Novgorod (1603) 15 March
- New Hieromartyr Nicandor (Prusak), Hieromonk of Tolga Monastery, Yaroslavl (1918) 30 June
- New Hieromartyr Nicanor (Kudriavtsev) bishop of Bogoroditsk (1923) 30 October
- New Hieromartyr Nicanor (Morozkin), Archimandrite, of Spas-Ruzsky, Moscow (1938) 18 June
- Apostle Nicanor the Deacon, one of the Seven Deacons, and one of the Seventy (34) 28 December
- Venerable Nicanor the Wonderworker of Mt. Callistratus (1419 or 1549) 7 August
- Hieromartyr Nicasius (Nicaise), Bishop of Rheims in France, with his sister Eutropia and Companions (407) West, before the Schism 14 December
- Saint Nicephoros, Presbyter of the monastery of Ephapsios 13 May
- Saint Nicephorus (Cantacuzene), Archdeacon, of Constantinople, who suffered under the Uniates in Marienburg, Galicia (1599) 8 June
- New Hieromartyr Nicephorus (Kuchin), Hieromonk, of Solovki Monastery (1928) 4 April
- Venerable Nicephorus (the Hesychast) of Mount Athos, teacher of St. Gregory Palamas (1340) 4 May
- Martyrs Nicephorus and Stephen 8 February
- Martyrs Nicephorus and Stephen, by flogging 25 October
- Martyr Nicephorus of Antioch in Syria (c. 257) 9 February
- Venerable Nicephorus of Charsianos, Constantinople 23 October
- Saint Nicephorus of Chios, monk (1821) 1 May
- Saint Nicephorus of Medikion, abbot and founder of Medikion Monastery (813) 4 May
- Saint Nicephorus of Sebaze (9th century) 29 April
- Martyr Nicephorus Zaitsev (1942) 8 May
- St. Nicephorus, Abbot of Katabad 19 April
- Saint Nicephorus, Bishop of Milet (11th century) 2 June
- New Hieromartyr Nicetas (Delektorsky), Bishop of Orekhovo-Zuevsk (1937) 6 November
- Venerable Nicetas of Medikion (Nicetas the Confessor), Abbot of Medikion (824) 3 April
- New Martyr Nicetas of Nisyros, near Rhodes, at Chios (1732) 21 June
- New Martyr Nicetas of Nyssa (c. 1300) 17 December
- Venerable Nicetas of Pythiae (modern Kouri) (pre-iconoclasm) 4 February
- Saint Nicetas of Remesiana, Bishop of Remesiana (Bela Palanka) (c. 414 or 420) 24 June
- Saint Nicetas of Thebes in Boetia, and his disciples Theodore, Gregory, and Daniel (1079) 23 June
- New Hieromartyr Nicetas Pribytkov, Bishop of Belev (Belevsk) (1937) 21 December
- New Hieromartyr Nicetas the Albanian, of Mount Athos and Serres (1808) 4 April
- Saint Nicetas the Confessor and Patrician, of Paphlagonia (c. 838) 13 October
- Venerable Nicetas the Confessor, Archbishop of Chalcedon, with his kinsmen Sts. Nicetas and Ignatius (8th century) 28 May
- Saint Nicetas the Confessor, Bishop of Apollonias in Bithynia (813) 20 March
- Great-martyr Nicetas the Goth and those with him (372) 15 September
- Blessed Nicetas the Hidden, of Constantinople (12th century) 9 September
- Saint Nicetas, Abbot of Synnada (9th century) 29 April
- Venerable Nicetas, Bishop of Chytri, near Kythrea, in Cyprus 15 September
- Saint Nicetas, Bishop of Novgorod and recluse of the Kiev Caves (1108) 14 May
- Saint Nicetas, desert-dweller of the Roslavl Forests, near Bryansk (1793) 29 March
- New Hieromartyr Nicetas, Hieromonk, of Epirus and Mt. Athos, at Serres (1809) 19 February
- Saints Nicetas, John and Joseph, founders of the Monastery of Nea Moni on Chios (c. 1050) 20 May
- Saint Nicetius (Nizerius), Bishop of Trier, Gaul (566) West, before the Schism 5 December
- Saint Nicetius of Besançon (Nizier), Bishop of Besançon in France and a friend of St Columbanus of Luxeuil (611) West, before the Schism 8 February
- Saint Nicetius of Lyon (Nizier), in Gaul (573) West, before the Schism 2 April
- Saint Nicetius, Archbishop of Lugdunum (Lyon), Gaul (573) West, before the Schism 3 December
- Saint Nicetus of Vienne, fifteenth bishop of Vienne (c. 449) West, before the Schism 5 May
- New Hieromartyrs Nicholas (1937) and Basil Derzhavin (1930), Priests, and martyred lay people of the city of Gorodets, Nizhni-Novgorod 18 April
- New Hieromartyr Nicholas (Ashchepev), Abbot, of the Holy Trinity Selinginsk Monastery (1937) 7 September
- New Hieromartyr Nicholas (Karaulov), Bishop of Velsk (1932) 4 April
- New Hieromartyr Nicholas (Prozgrov) (1930) 4 August
- New Hieromartyrs Nicholas Agafonnikov, Alexander Soloviev, Nicholas Archangelsky, Emilian Goncharov and Sozon Reshetilov, Priests (1937) 23 October
- New Hieromartyr Nicholas Amasiysky, Priest of Alma-Ata (1938) 13 December
- New Hieromartyrs Nicholas and Peter Kondarov, priests, Gregory Dolinin and Nicetas Almazov, deacons (1937) 15 November
- New Hieromartyrs Nicholas Andreyev, Boris Ivanosky and Basil Sokolov of Moscow, Protopresbyters (1937) 27 November
- New Hieromartyr Nicholas Aristov, Deacon (1931) 28 May
- New Hieromartyr Nicholas Beltiukov, Protopresbyter of Perm (1918) 17 December
- New Hieromartyr Nicholas Benevolsky, Priest of Alma-Ata (1941) 3 May
- New Hieromartyrs Nicholas Bogoslovsky and Nicholas Ushakov, Priests (1937) 22 October
- New Hieromartyr Nicholas Dimitrov, Priest (1938) 23 February
- New Hieromartyr Nicholas Dinariev, Presbyter (1918) 3 November
- New Hieromartyr Nicholas Dobronravov, Archbishop of Vladimir (1937) 27 November
- New Monk-martyr Nicholas Dvali of Jerusalem (1314) 19 October
- New Hieromartyr Nicholas Gavarin, Priest (1938) 11 April
- New Hieromartyr Nicholas Georgievsky, Priest (1931) 28 August
- New Hieromartyr Nicholas Holz, priest of Novosiolki, Chełm and Podlasie, Poland (1944) 20 March
- Saint Nicholas II Chrysoberges (Chrysovergis), Ecumenical Patriarch of Constantinople (995) 16 December
- New Hieromartyr Nicholas Iskrovsky, Protopresbyter (1919) 19 September
- Venerable Nicholas Kabasilas, Byzantine mystic and theological writer, spiritual child of St. Gregory Sinaitis (1392 or 1397) 20 June
- New Martyr Nicholas Karamanos of Smyrna (1657) 19 March, 6 December
- New Hieromartyr Nicholas Kazansky, Priest (1942) 7 October
- New Hieromartyr Nicholas Klementiev, Archbishop of Great Ustiug (1937) 18 December
- Blessed Nicholas Kochanov, Fool-for-Christ of Novgorod (1392) 27 July
- Martyr Nicholas Kopninsky (1938) 25 November
- New Hieromartyr Nicholas Kovalev, Priest of Alma-Ata (1937) 14 December
- New Hieromartyrs Nicholas Krasovsky, Sergius Lebedev, and Alexander Rousinov, Priests (1938) 18 January
- New Hieromartyr Nicholas Krylov, Priest (1941) 28 November
- Saint Nicholas Lebedev, Priest of Tver, New-Martyr (1933) 19 August
- New Hieromartyr Nicholas Lyubomudrov, Priest of Latskoye village, Yaroslavl (1918) 20 October
- New Hieromartyr Nicholas Maslov, Priest of Alma-Ata, Kazakhstan (1939) 4 January
- New Hieromartyr Nicholas Mezentsev, Archpriest, of Simferopol (1938) 1 February
- New Hieromartyrs Nicholas Morkovin, Alexis, and Alexis, Priests; and Simeon, Deacon (1938) 15 February
- Saint Nicholas Mystikos, Patriarch of Constantinople (925) 16 May
- Saint Nicholas of "Katopinos" 26 February
- New Martyr Nicholas of Chios (1754) 31 October
- New Martyr Nicholas of Corinth (1554) 14 February
- Venerable Nicholas of Courtaliatis in Crete, monk (1670) 1 September
- Saint Nicholas of Iveron (Mt. Athos) and Georgia, hymnographer (1308) 3 November
- Saint Nicholas of Japan, Archbishop and Equal-to-the-Apostles (1912) 16 February
- Saint Nicholas of Japan, Equal-to-the-Apostles, Enlightener of Japan (1912) [with Saint Innocent, Metropolitan of Moscow, Enlightener of Siberia and Alaska... 3 February
- New Martyr Nicholas of Magnesia (1776 or 1795) 24 April
- New Martyr Nicholas of Metsovo, at Trikala, whose relics are at Meteora (1617) 16 May
- Blessed Nicholas of Pskov, Fool-for-Christ (1576) 28 February
- New Martyr Nicholas of Six Marmara, at Constantinople (1732) 12 November
- Great-martyr Nicholas of Sofia, Bulgaria (1555) 17 May
- New Hieromartyrs Nicholas of Tarsus (1917) and his son Habib of Damascus (1948) 16 July
- Monk-martyr Nicholas of Vouneni, in Thessaly (901) 9 May
- New Hieromartyrs Nicholas Orlov and Jacob Arkhippov, Priests, and Alexis Vedensky, Deacon, of Yarsoslavl-Rostov (1937) 13 August
- New Hieromartyr Nicholas Parfenov, Bishop of Atkarsk (1939) 7 January
- Saint Nicholas Pisarevsky, Confessor, Priest (1933) 21 April
- Saint Nicholas Planas of Athens (1932) 2 March
- Saint Nicholas Planas, Priest, of Athens (1932) 17 February
- Hieromartyrs Nicholas Podyakov and Victor Usov, Priests (1918) 11 September
- New Hieromartyr Nicholas Pokrovsky (1919) 5 March
- New Hieromartyr Nicholas Pomerantsev, Priest (1938) 3 August
- New Hieromartyr Nicholas Ponomarev, Deacon (1918) 28 July
- New Hieromartyr Nicholas Popov, Priest (1919) 13 March
- New Hieromartyr Nicholas Poretsky, Priest (1933) 14 July
- New Hieromartyr Nicholas Postnikov, Archpriest, of Timoshkino, Ryazan (1931) 28 March
- New Hieromartyrs Nicholas Probatov, priest (1918) 29 October
- New Hieromartyr Nicholas Prozorov, Priest (1930) 6 August
- Saint Nicholas Rozov the Confessor, Priest (1941) 25 September
- New Hieromartyr Nicholas Rozov, Priest (1938) 20 February
- Saint Nicholas Rynin of Vologda, Fool-for-Christ (1837) 19 May
- New Hieromartyr Nicholas Ryurikov, Priest (1943) 5 June
- Hieromartyr Nicholas Shirogorov, Deacon (1942) 11 September
- New Hieromartyr Nicholas Shumkov, Priest (1937) 8 August
- New Hieromartyr Nicholas Simo, Archpriest, of Kronstadt (1931) 5 April
- New Martyr Nicholas Smirnov (1937) 10 November
- New Hieromartyr Nicholas Sushchevsky, Priest (1923) 3 September
- New Hieromartyrs Nicholas Tarbeev, Michael Cheltsov, and Nicholas Zalessky, Priests; and Michael Smirnov, Deacon (1931) 26 December
- Venerable Nicholas the Confessor, Abbot, of the Studion Monastery (868) 4 February
- New Martyr Nicholas the Deacon, of Mytilene (1463) 6 April
- New Martyr Nicholas the Grocer ("O Pantopolis"), at Constantinople (1672) 23 September
- Venerable Nicholas the Monk of Bulgaria (Nicholas the former soldier) (c. 802–811) 24 December
- Saint Nicholas the Pilgrim (Nicholas Peregrinus), a Greek Fool-for-Christ, confessor (1094) West, before the Schism 2 June
- Saint Nicholas the Sicilian, ascetic of Mt. Neotaka in Euboea 23 August
- Saint Nicholas the Wonderworker, Archbishop of Myra in Lycia (c. 345) 6 December
- New Hieromartyr Nicholas Tochtuev, deacon (1943) 4 May
- New Hieromartyr Nicholas Troitsky, Priest (1945) 25 February
- New Hieromartyr Nicholas Tsedrik, Priest (1917) 4 December
- New Martyr Nicholas Tsikura (1918) 24 January
- New Hieromartyr Nicholas Tsvetkov, Deacon (1937) 15 September
- New Hieromartyr Nicholas Udintsev, Priest (1918) 25 July
- Saint Nicholas V of Georgia, Catholicos of Georgia (1591) 18 February
- New Hieromartyr Nicholas Vasyukovich, Deacon (1937) 13 September
- New Hieromartyrs Nicholas Vereschagin, Michael Tverdovsky, Jacob Bobirev and Tikhon Archangelsky, Priests (1937) 4 October
- New Hieromartyr Nicholas Vinogradov, Confessor and Priest (1931) 4 November
- New Hieromartyr Nicholas Vinogradov, Priest (1937) 11 December
- New Hieromartyr Nicholas Vostorgov, Priest (1930) 19 January
- New Hieromartyr Nicholas Yermolov, Priest (1937) 13 October
- New Hieromartyr Nicholas Yershov, Priest of Yaroslavl-Rostov (1937) 3 December
- New Hieromartyrs Nicholas Zamaraev, John Vinogradov, George Kolokolov, Priests (1937) 26 November
- New Hieromartyrs Nicholas, and Basil Pobedonostsev, Priests (1918) 10 June
- Venerable Nicholas, Archbishop of Thessaloniki (c. 160) 29 November
- Saint Nicholas, Bishop of Patara, uncle of Saint Nicholas of Myra (4th century) 6 December
- New Hieromartyr Nicholas, Priest (1930) 7 March, 31 July
- New Hieromartyr Nicholas, priest (1919) 5 May
- New Hieromartyr Nicholas, Priest of Mytilene (1777) 16 January
- New Hieromartyr Nicodemus (Krotkov), Archbishop of Kostroma and Galich (1938) 8 August
- Venerable Nicodemus (Nikodemos) of Romania 13 December
- New Martyr Nicodemus of Elbasan and Mount Athos (1722) 11 July
- Venerable Nicodemus of Hilandar and Vatopedi, Mount Athos, instructor of St. Gregory Palamas (1320) 11 July
- Venerable Nicodemus of Khozyuga (Kozhe Lake), monk of Kozhaezersk Monastery (1640) 3 July
- Saint Nicodemus of Mammola in Calabria (990) West, before the Schism 12 March
- Venerable New Monk-Martyr Nicodemus of Meteora (1551) 16 August
- Venerable Nicodemus of Mt. Athos, spiritual writer (1809) 14 July
- Saint Nicodemus of Pec, Archbishop of Serbia (1324) 11 May
- Saint Nicodemus the Sanctified of Tismana, Romania (1406) 26 December
- Saint Nicodemus the Younger, of Beroea in Macedonia (c. 1305) 11 November
- Saint Nicolas (Basdanis) the New Martyr of Metsovo (St Nicolas the Vlach) (1617) 17 May
- Saint Nicomedes, by tradition he was a priest martyred in Rome, perhaps under Domitian (c. 90) West, before the Schism 15 September
- Venerable Nicon the Great, abbot of the Kiev Caves (1088) 23 March
- Saint Nicon, abbot of the Monastery of St. Gerasimus (6th century) 27 April
- Saint Nidger (Nidgar, Nitgar, Neodegar), Abbot of Ottobeuren Abbey in Bavaria, became Bishop of Augsburg in Germany (c. 829) West, before the Schism 15 April
- Martyr Nikander, by the sword 6 November
- Saint Nikanor (Savić) the New, Abbot of Hilandar (1990) 19 February
- Martyr Nike (Nice), by the sword (303) 25 April
- Saint Nikephoros I the Confessor, Patriarch of Constantinople (828) 2 June
- Saint Nikephoros II Phokas, Emperor of the Romans (969) 11 December
- New Martyr Nikephoros of Crete, by hanging, for renouncing Islam and confessing his faith in Christ (1832) 11 January
- Venerable Nikephoros the Leper (1964) 4 January
- New Hieromartyr Nikiphor Litvin, Deacon (1937) 7 December
- Venerable Nikita Stylites, Wonderworker of Pereyaslavl-Zalesski (1186) 24 May
- New Martyr Nikita Sukharev (1942) 21 June
- Venerable Nikita, recluse of the Kiev Caves, Bishop of Novgorod (1108) 31 January
- Saint Nikitas the Sinaite 12 May
- Saint Nikodemos (Nicodemus) the Younger of Philokalos Monastery in Thessaloniki (c. 1305) 24 November
- New Hieromartyr Nikodim (Νikodemos) Kononov, Bishop of Belgorod, at Solovki (1918) 28 December
- Saint Nikodim Milaš of Dalmatia (1915) 4 October
- Venerable Nikola Sviatosha, Prince of Chernigov and Wonderworker, of the Kiev Caves (1143) 14 October
- Saint Nikolai (Velimirovich), Bishop of Ohrid and Žiča, Serbia (1956) 5 March
- New Hieromartyr Nikolai Chernishev, Archpriest of Udmurtia (east of Kazan), and his daughter, New Martyr Barbara (1919) 20 December
- New Hieromartyr Nikolai Zavarin, Priest (1937) 6 August
- New Hieromartyr Nikolaos of Trebizond, Bishop of Amisos (1920) 14 February
- Venerable Nikon (Nicon) the Dry of the Kiev Near Caves (1101) 11 December
- Monk-martyr Nikon and 199 disciples, in Sicily (251) 23 March
- Venerable Nikon the Metanoeite of Armenia, "Preacher of Repentance" (988) 26 November
- Venerable Nikon, Abbot of Radonezh, disciple of St. Sergius of Radonezh (1426) 17 November
- New Hieromartyr Nilus (Tyutyukin), Hieromonk of St. Joseph of Volokolamsk Monastery (1938) 7 March
- Venerable Nilus of Ereikoussa, nephew of Emperor Theodore Laskaris (c. 1335) 16 August
- Venerable Nilus of Sora, Abbot and Wonderworker (1508) 7 May
- Venerable Nilus of Sora, founder of Sora Skete, Belozersk (1508) 7 April
- New Martyr Nilus Smirnov, Priest (1938) 19 September
- Venerable Nilus the Faster, of Sinai (451) 12 November
- Venerable Nilus the Myrrh-gusher, of Mount Athos (1651) 12 November
- Saint Nilus the Younger, of Rossano, Calabria, founder of the monastery of Grottaferrata (Crypta-Ferrata) (1004) West, before the Schism 26 September
- New Hieromartyr Nilus, Hieromonk, of Poltava (1918) 4 July
- Venerable Nilus, Monk of Stolobny (Stolben) Island (Stolbensk Lake) (1544) 7 December
- Virgin-martyr Nina (Kuznyetsova), new martyr of Vologda (1938) 1 May
- Saint Nina (Nino), Equal-to-the-Apostles, Enlightener of Georgia (335) 14 January
- Virgin-martyrs Nina (Shuvalova), and Seraphima (Gorshkova), nuns (1937) 6 November
- Holy Nine Children of Kola, Georgia (6th century) 22 February
- Nine Kherkheulidze brothers, their mother and sister, and 9,000 others, who suffered on the field of Marabda, Georgia (1625) 3 August
- Holy Nine Martyrs 30 October
- Nine martyrs at Cyzicus (c. 286-299) 28 April, 29 April
- Holy Nine Martyrs in the Persian Empire 12 March
- Holy Nine Martyrs of Perge in Pamphylia 1 August
- Saint Ninian, Apostle to the Southern Picts (432) West, before the Schism 26 August
- Saint Ninian, Bishop of Whithorn (Candida Casa), Apostle to the Southern Picts (c. 432) West, before the Schism 16 September
- Saint Ninnidh of Inishmacsaint (Inismacsaint), Ireland (6th century) West, before the Schism 18 January
- New Hieromartyr Niphon (Niphont) Vyblov, Hieromonk, of Berezovy Khutor, Saratov and New Martyr Alexander Medem (1931) 10 November
- Venerable Niphon Kausokalybites of Mount Athos, proponent of hesychastic theology (1411) 14 June
- Saint Niphon Kausokalybites, monk, of Kapsokalyvia, Mount Athos (1411) 13 June
- Saint Niphon, Bishop of Constantia, Cyprus (4th century) 23 December
- Saint Niphon, Patriarch of Constantinople (1508) 11 August
- Saint Niphont, Bishop of Novgorod (1156) 8 April
- Martyr Niro, by the sword 10 November
- Martyr Niser, under Maximian, by fire (c. 286-305) 6 December
- Saint Nissen, abbot of Montgarth (Mountgarret) Abbey in Wexford, Ireland West, before the Schism 24 July
- Saint Nithard, a monk at Corbie Abbey in Saxony in Germany and a companion of St Ansgar, whom he followed to Sweden as a missionary, martyred there by pagan... (845) West, before the Schism 4 February
- Saint Nivard of Rheims, Archbishop of Rheims in France (673) West, before the Schism 1 September
- The Holy Noble Lady (sister of martyr Thermos/Fermus), and her Servant, martyrs, by the sword 5 April
- Venerable Nomon 18 December
- Venerable Nomon the Wonderworker of Cyprus 11 December
- Saint Non (Nonnita, Nonna), mother of St. David of Wales (6th century) West, before the Schism 3 March
- Righteous Nonna (374), wife of Gregory of Nazianzus the Elder and mother of St. Gregory the Theologian 5 August
- Saint Nonnosus, a monk at the monastery of Mt Soracte in Italy; his wonderful deeds were recorded by St Gregory the Great (c. 575) West, before the Schism 2 September
- Martyr Nonnus 5 June
- Venerable Nonnus, Bishop of Heliopolis, and the catechist of Saint Pelagia (471) 10 November
- Venerable Nonnus, monk 5 December
- Saint Nostrianus, Bishop of Naples in Italy and a valiant opponent of Arianism and Pelagianism (c. 450) West, before the Schism 14 February
- Saint Notburga, a nun at the convent of St Mary in the Capitol in Cologne in Germany (c. 714) West, before the Schism 31 October
- Saint Nothhelm, eleventh Archbishop of Canterbury and a friend of St Bede and St Boniface (739) West, before the Schism 17 October
- Saint Notker the Stammerer, nicknamed Balbulus (the Stammerer), monk at St Gall Abbey where he spent his whole life, excelling as a musician (912) West, before the Schism 6 April
- Saint Novatus, son of Pudens, senator of Rome, and brother of Sts Praxedes and Pudentiana (c. 151) West, before the Schism 20 June
- Saint Noyala, a holy virgin from Britain beheaded at Beignan in Brittany West, before the Schism 6 July
- Saint Numerian (Memorian), Bishop of Trier, Confessor (c. 666) West, before the Schism 5 July
- Saint Numidicus and Companions, a group of martyrs burnt at the stake at Carthage in North Africa under Decius (251) West, before the Schism 9 August
- Nun-martyr Anastasia, Abbess, and 34 nuns with her, of Uglich (1609) 10 April
- Venerable Nun-Martyr Eugenia of Rome 24 December
- Nun-Martyr Evloghia Țârlea, of Samurcășești Monastery (1949) 19 December
- Nun-martyr Martha, abbess of Monemvasia (990) 24 May
- Nun-martyr Martha, Abbess of Monemvasia, with three companions (990) 5 May
- Nun-martyr Paraskevi of Rome (138–161) 26 July
- Nun-martyrs Thecla, Mariamne, Martha, Mary, and Enmatha, in Persia, by beheading (346) 9 June
- Saint Nunctus (Noint), Abbot of a monastery near Mérida in the west of Spain, murdered by robbers and venerated as a martyr (668) West, before the Schism 22 October
- Saints Nunilo and Alodia, two sisters, a pair of child-martyrs from Huesca in Spain (851) West, before the Schism 22 October
- Venerable Nuns Theodora, and Theopisti her daughter, of Aegina, in Thessaloniki (892) 3 August