Clitarchus may refer to:
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Cleitarchus
Cleitarchus or Clitarchus () was one of the historians of Alexander the Great. Son of the historian Dinon of Colophon, he spent a considerable time at the court of Ptolemy Lagus. He was active in the mid to late 4th century BCE.
Quintilian ('' ...
, a Greek historian active in the late 4th century BCE
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Cleitarchus of Eretria, a Greek tyrant who lived in the 4th century BCE
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''Clitarchus'' (phasmid), a genus of insects in the family Phasmatidae
{{Disambiguation