Byzantine historian whose world history, Historical Epitome, extending from the creation to 1118, provides valuable information on the 11th century.

After holding high office in Constantinople under Alexius I Comnenus, Zonaras became a monk and retired to a remote island. In Historical Epitome he drew on a rich collection of sources, some of which, notably several books of Dio Cassius' Romaika, are preserved only through him. A Lexicon and theological writings are also attributed to him.