Diagoras of Rhodes (/daɪəˈæɡərəs/; ‹See Tfd›Greek: Διαγόρας ὁ Ῥόδιος) was an Ancient Greek boxer from the 5th century BC, who was celebrated for his own victories, as well as the victories of his sons and grandsons. He was a member of the Eratidea family at Ialysos in Rhodes.