Zosimus (Greek:Ζώσιμος [ˈzosimos]; also known by the Latin name Zosimus Historicus, i.e. "Zosimus the Historian"; fl. 490s–510s) was a Byzantine historian who lived in Constantinople during the reign of the Byzantine Emperor Anastasius I (491–518). According to Photius, he was a comes, and held the office of "advocate" of the imperial treasury.