The Eoghanacht is a historical dynasty in ancient Ireland, primarily associated with the region of Munster. This lineage claims descent from Eoghan, a son of Oilioll Olum, a legendary king. The Eoghanacht were known for their influence and power during the early medieval period, particularly in the 7th and 8th centuries. The dynasty is notable for its role in the establishment of several important kingdoms, including Desmond and Kerry. The Eoghanacht rulers often engaged in conflicts with other dynasties, such as the Dal gCais, and played a significant part in the political landscape of Ireland during their time.