Eustathius of Epiphania (Greek: Εὐστάθιος Ἐπιφανεύς, died after 518)^[1] was a sixth-century Byzantine historian.

Eustathius was born in Epiphania (modern Hama, Syria). He was probably a Christian and wrote in the time of the emperor Anastasius I a history (Chronological Epitome) from the fall of Troy to the 12th year of Anastasius (502/3) in two parts. The chronicle was used by later historians, but only a few fragments remain preserved in Evagrius Scholasticus, the Suda and John Malalas. According to Evagrius, Eustathius's work was an epitome (a compilation, not an abridgement^[2]) of pagan and ecclesiastical writers.

Eustathius is also known to have compiled an epitome of Josephus (Historikon of the Judaean Archaeology by Iosepos). It is likely the same as a short 13th/14th-century text preserved in Paris. It begins with Adam and Eve and reaches to the reign of Vespasian and Titus.