| Lists of religious leaders by century: |
| See also: |
This is a list of the top-level leaders for religious groups with at least 50,000 adherents, and that led anytime from January 1, 301, to December 31, 400. It should likewise only name leaders listed on other articles and lists.
Christianity
Chalcedonian Christianity
- Marcellinus, Pope (296–304)
- Marcellus I, Pope (308–309)
- Eusebius, Pope (309–310)
- Miltiades, Pope (311–314)
- Sylvester I, Pope (314–335)
- Mark, Pope (336)
- Julius I, Pope (337–352)
- Liberius, Pope (352–366)
- Liberius, Pope (352–366)
- Anastasius I, Pope (399–401)
- Probus, Bishop of Byzantium (293–306)
- Metrophanes, Bishop of Byzantium (306–314)
- Alexander, Bishop of Byzantium (314–337)
- Paul I ("the Confessor"), Archbishop of Constantinople (337–339, 341–342, 346–350)
- Eusebius of Nicomedia, Archbishop of Constantinople (339–341)
- Macedonius I, Archbishop of Constantinople (342–346, 351–360)
- Eudoxius of Antioch, Archbishop of Constantinople (360–370)
- Florentius, Archbishop of Constantinople (c. 363) (Anomoean rival to Eudoxius)
- Demophilus, Archbishop of Constantinople (370–380)
- Evagrius, Archbishop of Constantinople (370 or 379)
- Maximus I, Archbishop of Constantinople (380)
- Gregory of Nazianzus, Archbishop of Constantinople (380–381)
- Nectarius, Archbishop of Constantinople (381–397)
- John Chrysostom, Archbishop of Constantinople (398–404)
- Peter I, Hierarch of Alexandria (300–311)
- Achillas, Hierarch of Alexandria (312–313)
- Athanasius I, Patriarch of Alexandria (328–339, 346–373)
- Gregory of Cappadocia (339–346), Arian Patriarch; not accepted by the adherents of the Nicene creed (and thus not counted by Coptic Orthodox, Byzantine Orthodox or Catholic lineages)
- Peter II (373–380)
- Lucius of Alexandria (373–377), an Arian installed by Emperor Valentinian I and not recognized by the adherents of the Nicene Creed
- Timothy I, Patriarch of Alexandria (380–385)
- Theophilus I, Patriarch of Alexandria (385–412)
- Cyril, Bishop (279/280–303)
- Tyrannion, Bishop (304–314)
- Vitalis, Bishop (314–320)
- Philogonius, Bishop (320–324)
- Eustathius, Patriarch (324–330)
- Paulinus, Patriarch (331–332)
- Eulalius, Patriarch (330)
- Euphronius, Patriarch (332–333)
- Flacillus, Patriarch (333/4–342)
- Stephen I, Patriarch (342–344)
- Leontius, Patriarch (344–357/8)
- Eudoxius, Patriarch (358–359)
- Annanius, Patriarch (359)
- Meletius (360–381)
- Euzoius, Patriarch (360/1–376) (Arian claimant)
- Vitalis, Patriarch (375) (Apollinarist claimant)
- Dorotheus, Patriarch (376–381) (Arian claimant)
- Paulinus II, Patriarch (362–388) (Nicene claimant)
- Flavian I, Patriarch (381–404)
- Ermon, Bishop of Jerusalem (Aelia Capitolina) (283–314)
- Macarius I, Bishop of Jerusalem (Aelia Capitolina) (314–333)
- Maximus III, Bishop of Jerusalem (333–348)
- Cyril I, Bishop of Jerusalem (350–386)
- John II, Bishop of Jerusalem (386–417)
Judaism
Rabbinic Judaism
- Judah III, Nasi (c.290–320)
- Hillel II, Nasi (320–365)
- Gamaliel V, Nasi (365–385)
- Judah IV, Nasi (385–400)
- Nehemiah, Exilarch (in 313)
- Ukban ben Nehmiah, Exilarch (c. 400?)
- Nathan Ukban II, Exilarch (370 to about 400?)
- Huna bar Nathan
