Osarseph /ˈoʊzərˌsɛf/ or Osarsiph /ˈoʊzərˌsɪf/ (Koinē Greek: Ὀσαρσίφ) is a legendary figure of Ancient Egypt who has been equated with Moses. His story was recounted by the Ptolemaic Egyptian historian Manetho in his Aigyptiaca (first half of the 3rd century BC); Manetho's work is lost, but the 1st century AD Jewish historian Josephus quotes extensively from it.