Hugh Oge O'Neill

Hugh Oge O'Neill (died 1586), known fully as Hugh Oge McHugh O'Neill, was the son of Hugh O'Neill of the Clandeboye O'Neill's of eastern Ulster, Gaelic Ireland.

In 1574, Hugh's paternal uncle, Brian McPhelim O'Neill, lord of Clandeboy, was executed for treason. Afterwards Hugh's relation, Neill McBrian Fertagh O'Neill, was appointed lord of Clandeboye by the Lord-Deputy of Ireland, Walter Devereux, 1st Earl of Essex.

This appointment caused internal strife amongst the rival claimants of the Clandeboye O'Neill's. As a result, in 1584, Lord-Deputy, Sir John Perrot, divided the Clandeboye estate into three. Hugh was granted one quarter of the northern Clandeboye estate centered on Edenduffcarrick in modern-day south-western County Antrim, Northern Ireland. His possession of the castle there, also known as Edendougher, was confirmed by Sir Thomas Norris in an arbitration with Hughs first cousin Shane MacBrian O'Neill.

Despite this arrangement, internal disputes continued especially between Hugh and Shane McBrian, who was granted the other three-quarters of the northern Clandeboye estate in 1584. This resulted in the murder of Hugh in 1586 after which his grant was given to his brother, Neill McHugh O'Neill.