4th-century Christian theologians

Saint Anthony or Antony (Greek: Ἀντώνιος, Antṓnios; Latin: Antonius, Coptic: Ⲁⲃⲃⲁ Ⲁⲛⲧⲱⲛⲓ ; c. 251–356) was a Christian monk from Egypt, revered since his death as a saint.

Jovinian (Latin: Jovinianus; died c. 405), was an opponent of Christian asceticism in the 4th century and was condemned as a heretic at synods convened in Rome under Pope Siricius and in Milan by St Ambrose in 393.

Amphilochius of Iconium (Greek: Ἀµφιλόχιος Ἰκονίου) was a Christian bishop of the fourth century, son of a Cappadocian family of distinction (perhaps at Caesarea, ca. 339/340 – probably 394–403).

Aëtius of Antioch (/eɪˈiːʃiəs/; Greek: Ἀέτιος ὁ Ἀντιοχεύς; Latin: Aëtius Antiochenus; fl. 350), surnamed "the Atheist" by his trinitarian enemies, founder of an Arian Christian movement, was a native of Coele-Syria.

Gregory of Nyssa, also known as Gregory Nyssen (Greek: Γρηγόριος Νύσσης; c. 335 – c. 395), was bishop of Nyssa from 372 to 376 and from 378 until his death.

Aphrahat (c. 280–c. 345; Syriac: ܐܦܪܗܛ‎ — Ap̄rahaṭ, Persian: فرهاد‎‎, Greek Ἀφραάτης, and Latin Aphraates) was a Syriac-Christian author of the third century from the Adiabene region of Assyria (then Sassanid ruled Assuristan), which was within the Persian Empire, who composed a series of twenty-three expositions or homilies on points of Christian doctrine and practice.

John Chrysostom (/ˈkrɪsəstəm, krɪˈsɒstəm/; Greek: Ἰωάννης ὁ Χρυσόστομος), c.

Gregory of Nazianzus (Greek: Γρηγόριος ὁ Ναζιανζηνός Grēgorios ho Nazianzēnos; c. 329 – 25 January 390), also known as Gregory the Theologian or Gregory Nazianzen, was a 4th-century Archbishop of Constantinople, and theologian.

Saint Athanasius of Alexandria (/ˌæθəˈneɪʃəs/; Greek: Ἀθανάσιος Ἀλεξανδρείας, Athanásios Alexandrías; c. 296–298 – 2 May 373), also called Athanasius the Great, Athanasius the Confessor or, primarily in the Coptic Orthodox Church, Athanasius the Apostolic, was the twentieth bishop of Alexandria (as Athanasius I).

Arius (Berber: Aryus; Ancient Greek: Ἄρειος, AD 250 or 256–336) was a Christian presbyter and ascetic of Berber origin, and priest in Alexandria, Egypt, of the church of the Baucalis.

Ephrem the Syrian (Syriac: ܡܪܝ ܐܦܪܝܡ ܣܘܪܝܝܐ‎ Mār Aprêm Sûryāyâ; Greek: Ἐφραίμ ὁ Σῦρος; Latin: Ephraem Syrus, also known as St. Ephraem (Ephrem, Ephraim); ca. 306 – 373) was a Syriac Christian deacon and a prolific Syriac-language hymnographer and theologian of the 4th century.

Theodore the Interpreter (ca. 350 – 428) was bishop of Mopsuestia (as Theodore II) from 392 to 428 AD.

Tyrannius Rufinus, also called Rufinus of Aquileia (Rufinus Aquileiensis; 340/345–410), was a monk, historian, and theologian.

Auxentius of Milan or of Cappadocia (fl. c. 355 – 374), was an Arian theologian and bishop of Milan.

Ticonius, also spelled Tyc(h)onius (active 370–390 AD) was an African Donatist writer whose conception of the City of God influenced St.

Didymus the Blind (alternatively spelled Dedimus or Didymous) (c. 313 – 398) was a Christian theologian in the Coptic Church of Alexandria, whose famous Catechetical School he led for about half a century.

Cyril of Jerusalem (Greek: Κύριλλος Α΄ Ἱεροσολύμων, Kýrillos A Ierosolýmon; Latin: Cyrillus Hierosolymitanus) was a distinguished theologian of the early Church (c. 313 – 386 AD).

Saint Pachomius (Greek: Παχώμιος, Coptic: Ⲡⲁϩⲱⲙ ca. 292–348), also known as Pachome and Pakhomius (/pəˈkoʊmiəs/), is generally recognized as the founder of Christian cenobitic monasticism.

Basil of Caesarea, also called Saint Basil the Great (Greek: Ἅγιος Βασίλειος ὁ Μέγας, Ágios Basíleios o Mégas; 329 or 330 – January 1 or 2, 379), was the Greek bishop of Caesarea Mazaca in Cappadocia, Asia Minor (modern-day Turkey).

Aphthonius (Ancient Greek: Ἀφθόνιος) of Alexandria is mentioned by church historian Philostorgius as a learned and eloquent bishop of the Manichaeans.

Acacius of Beroea, a Syrian by birth, lived in a monastery near Antioch, and, for his active defense of the Church against Arianism, was made Bishop of Berroea in 378 AD, by Eusebius of Samosata.

Auxentius of Durostorum a.