Eusebius (263–339 AD) was a Christian exegete, historian and polemicist.

Eusebius may also refer to:

Eusebius of Laodicea (died 268), bishop of Laodicea Pope Eusebius (died 310), Pope in 309 or 310 Eusebius of Nicomedia (died 341), bishop of Berytus, Nicomedia and Constantinople, leader of Arianism Eusebius (consul 347) (died c. 350), Roman consul in 347 Saint Eusebius of Rome (died 357), priest and martyr Eusebius (consul 359), Roman consul in 359 Eusebius of Emesa (300–360), bishop of Emesa Eusebius (praepositus sacri cubiculi), under Constantius II (died 361 AD) Eusebius of Gaza (died c. 362), early Christian martyr Saint Eusebius of Vercelli (283–371), bishop of Vercelli, opponent of Arianism Saint Eusebius of Samosata (died 4th-century), bishop of Samosata Saint Eusebius the Hermit (4th century), solitary monk of Syria Eusebius of Myndus (4th century), Neoplatonist philosopher Eusebius (sophist) (4th century), Roman sophist Saint Eusebius of Cremona (died c. 423), monk, pre-congregational saint, and disciple of Jerome Saint Eusebius (bishop of Milan) (died 462), archbishop of Milan Eusebius (consul 489), Roman consul in 489 and 493 Eusebius of Dorylaeum (5th century), bishop of Dorylaeum, opponent of Nestorianism and Monophysitism Eusebius, bishop of Paris until his death in 555 Eusebius of Alexandria (6th century), Christian author Eusebius Gallicanus (6th century), Collection of homilies Eusebius of Thessalonika (6th or 7th century), bishop of Thessalonika during the time of Pope Gregory the Great Hwaetberht (died c. 740s), Abbot of Monkwearmouth-Jarrow Priory, who wrote under the pen-name of Eusebius

Eusebius of Angers (died 1081), bishop of Angers Eusebius of Esztergom, c. 1200–1270) Hungarian priest, hermit, founder of the Order of Saint Paul the First Hermit Karl Eusebius of Liechtenstein (1611–1684), the second prince of Liechtenstein Eusebius, pen name of Edmund Rack (1735–1787) Eusebius, one of the personae of Robert Schumann (1810–1856) Eusebius Barnard (1802–1865), American minister and abolitionist Eusebius J. Beltran (1934–2025), American Catholic bishop

Eusebius is also the name of: Jerome (347–420), Christian scholar and church father, whose full name was Eusebius Sophronius Hieronymus

See also Eusebia (disambiguation) Eusebio (disambiguation) Eusebeia (Greek: εὐσέβεια), a Greek philosophical and Biblical concept meaning inner piety, spiritual maturity, or godliness.