Monunius (Ancient Greek Μονούνιος; ruled c. 176 – 167 BC) was an Illyrian king of the Dardanian State who lived in the late 3rd century BC and early 2nd century BC. Monunius attested first in 176 BC was the son of Longarus, a Dardanian king who caused much trouble to Macedonia from 230 BC onwards. He succeeded his brother Bato to the Dardanian throne. Monunius was known for his victory he inflicted on the Bastarnae during the Bastarnae Invasion of Dardania.
Etuta the daughter of Monunius married the Ardiaean King Gentius in 169 BC. Since the dynastic marriage relations seem not to have brought an alliance between the two Illyrian States, in 168 BC Gentius allied with Perseus, the enemy of his father-in-law. Many Dardanian kings of the same time were named Monunius and there seems to be some confusion as to whom certain actions and events pertain.
