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 Connacht
- Kings of Dál nAraidi
- Kings of Dál Riata
- Kings of Déisi Muman
- Kings of Desmond
- Kings of Dublin
- Kings of East Breifne
- Kings of Fer Manach
- Kings of Leinster
- Kings of Magh Luirg
- Kings of Mide
- Kings of Munster
- Kings of Osraige
- Kings of Síol Anmchadha
- Kings of Tara
- Kings of Thomond
- Kings of Tír Chonaill
- Kings of Tír Eoghain
- Kings of Uí Cheinnselaig
- Kings of Uí Failghe
- Kings of Uí Maine
- Kings of Uisnech
- Kings of Ulster
- 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