This page serves as an index of lists of kings of the Gaelic kingdoms of Ireland of the Early Medieval period.

List of High Kings of Ireland Kings of Ailech Kings of Airgíalla Kings of Brega Kings of Breifne Kings of Ciannachta Kings of Clandeboye Kings of Conaille Muirtheimne Kings of Connacht Kings of Corco Modhruadh Kings of Dál nAraidi Kings of Dál Riata Kings of Déisi Muman Kings of Desmond Kings of Dublin Kings of East Breifne Kings of Eilne Kings of Fer Manach Kings of Iar Connacht Kings of Iarmuman Kings of Iveagh Kings of Leinster Kings of Loch Gabhar Kings of Luighne Connacht Kings of Magh Luirg Kings of Mide Kings of Munster Kings of Ormond Kings of Osraige Kings of Síol Anmchadha Kings of Sliabh Lugha Kings of Tara Kings of Thomond Kings of Tory Kings of Tír Chonaill Kings of Tír Eoghain Kings of Uí Cheinnselaig Kings of Uí Díarmata Kings of Uí Failghe Kings of Uí Fiachrach Aidhne Kings of Ui Fiachrach Muaidhe Kings of Uí Maine Kings of Uisnech Kings of Ulster Kings of Umhaill Kings of Waterford Kings of West Breifne

See also List of Irish royal consorts List of Lords of Ireland – lists rulers of the Lordship of Ireland from 1171 to 1542 List of Irish monarchs – lists sovereigns of the Kingdom of Ireland from 1542 to 1800 and the Irish Free State List of presidents of Ireland – lists heads of state of the Republic of Ireland