Atarrhias (Ancient Greek: Ἀταῤῥίας) (or Tarrhias according to Plutarch), son of Deinomenes, was a man of ancient Macedonia mentioned several times by the historian Quintus Curtius Rufus, with a slight variation in the orthography of the name, in the wars of Alexander the Great.
[3][4] He was a leading voice in the argument to execute Alexander of Lyncestis.
[4] He could have been the same Atarrhias as the one who was sent by Cassander with a part of the army to oppose Aeacides, king of Epirus, in 317 BCE.
[6][4] We know that by the end of the Macedonian campaign he was heavily in debt, so much so that he attempted to defraud Alexander in a scheme involving veterans funds.
Dictionary of Greek and Roman Biography and Mythology.