Mnesarchus

Mnesarchus or Mnesarch may refer to:
 * Father of Pythagoras
 * Mnesarchus of Athens, a Stoic philosopher, lived c. 100 BC
 * A possible name of the father of Euripides
 * Father of Callias of Chalcis
 * An assistant archon of Athens (thesmothete)
 * From the Phoenician city of Tyre