Aodh mac Maghnusa Ó Domhnaill

Sir Hugh O'Donnell Aodh mac Maghnusa Ó Domhnaill
King of Tyrconnell
Reign	1566-1592
Predecessor	Calvagh O'Donnell
Heir	Hugh Roe O'Donnell
Born	c. 1540 Tyrconnell, Ireland
Died	c. 1600 (aged 59-60) Donegal, Tyrconnell, Ireland
Spouse	Ineen Dubh
Issue	Numerous
House	Uí Dhomhnaill
Father	Manus O'Donnell
Mother	Judith O'Neill

Sir Hugh O'Donnell (Irish: Aodh mac Maghnusa Ó Domhnaill) (died c. 1600), was an Irish Gaelic lord. He was The O'Donnell of his clan, and king of Tyrconnell in medieval Ireland.

O'Donnell's second marriage was to Iníon Dubh. In the 1580s a violent succession dispute broke out amongst the O'Donnells over who would succeed him. He abdicated in favour of his eldest son by his second wife, Hugh Roe O'Donnell, in 1592. He lived in retirement until his death 1600, by which time Tyrone's Rebellion was in full flight.

From his first marriage, their children were:

His second marriage was to Fionnghuala (Fiona) MacDonald, known by the Irish nickname Iníon Dubh, daughter of James MacDonald, 6th of Dunnyveg and Agnes Campbell, their children were:

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