Mytilos or Mytilus (Ancient Greek: Μύτιλος; Latin: Mytilus; ruled c. 270 – 231 BC) was an Illyrian king who reigned in southern Illyria, around the hinterland of Dyrrhachion and Apollonia. He was the successor of Monunios, and probably his son. Mytilus is mentioned by Pompeius Trogus (1st century BC) and Frontinus (1st century AD) reporting the events of the military conflict between the Illyrians and the Epirotes under Alexander II, son of Pyrrhus. From around 270 BC Mytilus minted in Dyrrhachion his own bronze coins bearing the king's name and the symbol of the city.