Donnell O'Neill may refer to:
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Donnell Claragh O'Neill
Donnell Claragh O'Neill ( Irish: ''Domhnall Clarach Ó Néill'', died 1509), was a member of the O'Neill Dynasty of Tír Eoghain, Ulster in medieval Ireland. He was the son of Con O'Neill, and a half-brother to Henry Oge O'Neill. He succeeded H ...
(died 1509), member of the O'Neill dynasty of Tír Eoghain, Ulster
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Donnell O'Neill (d. 1325)
Donnell O'Neill ( Irish: ''Domhnall Ua Néill'') was a king of Tyrone in medieval Ireland. He was the son of Brian O'Neill of the battle of Down. O'Neill was king of Tyrone on several occasions contesting the kingship with his kinsman Niall Cul ...
, king of Tyrone in medieval Ireland
{{hndis, Oneill, Donnell