Berossus

Berossus (/bəˈrɒsəs/) or Berosus (/bəˈroʊsəs/; Ancient Greek: Βηρωσσος, romanized: Bērōssos; possibly derived from Akkadian: , romanized: Bēl-rēʾušunu, "Bel is his shepherd") was a Hellenistic-era Babylonian writer, a priest of Bel Marduk and astronomer who wrote in the Koine Greek language, and who was active at the beginning of the 3rd century BC. His original works, including his Babyloniaca, have been lost but fragmentarily survive in some quotations, especially in the writings of the fourth-century Christian writer Eusebius.

Berossus has recently been identified with Bēl-rē’ûšunu, a high priest of the temple Esagila Temple mentioned in a document from 258 BC.