Áed Méith Ua Néill

Aodh Méith
King of Tír Eogain
Reign	c. 1196–1230
Predecessor	Muircheartach mac Muircheartaigh Ó Lochlainn
Successor	Domhnall Óg
Died	1230
Spouse	Bean-Midhe
Issue	Domhnall Óg
Middle Irish	Áed mac Áeda
Early Modern Irish	Aodh mac Aodha, "Méith"
Father	Aodh an Macaoimh Tóinleasg

Aodh Méith or Áed Méith (died 1230) was a 13th-century king of Tír Eoghain. The son of Aodh an Macaoimh Tóinleasg, Aodh spent much of his career fighting off threats from Fir Manach, Tír Conaill and Galloway, as well as John de Courcy and the Lordship of Ireland. His involvement in Irish Sea politics may have seen him sponsor a Mac Uilleim claim to the Scottish throne, but this is unclear.

Latterly the ally of Hugh de Lacy, Earl of Ulster, Aodh secured a stable relationship with the earldom of Ulster and lordship of Ireland, two Anglo-Norman polities that came into existence in Aodh's lifetime. By the end of his life he was the supreme native Irish ruler in the north of the island, and passed succession onto his son Domhnall Óg (Domnall Óc). A literary biography devoted to Aodh was seemingly composed sometime in the Middle Ages, but it has not survived. He is the ancestor—though not the eponymous ancestor— of Clann Aodha Buidhe, the Clandeboy O'Neills.

Aodh Méith was the son of Aodh an Macaoimh Tóinleasg, himself briefly king of Tír Eoghain. Aodh an Macaoimh Tóinleasg had begun the process of overturning Ó Lochlainn dominance in Tír Eoghain. His traditional nickname An Macaoimh Tóinleasg or "the lazy-rumped lad", was earned, according to the 16th-century Leabhar Eoghanach, after he refused to stand in the presence of the high king Muircheartach Ó Lochlainn. The son's nickname, Méith, means "the fat".

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