Callippus
2. Of Athens, is mentioned by Aristotle (Aristot. Rh. 2.23) as the author of a τέχνη ῥητορική, but nothing further is known about him.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.