Con O'Neill or Conn O'Neill may refer to:

• Conn O'Neill (d. 1482), lord of Clandeboye in medieval Ireland
• Conn O'Neill, 1st Earl of Tyrone (c. 1480–1559), King of Tír Eóghain
• Conn O'Neill (died 1601), Irish soldier
• Conn O'Neill (prisoner), seventeenth century Irish aristocrat
• Conn Ó Néill, head of the Clandeboye O'Neill dynasty

• Con O'Neill (actor) (born 1966), British actor
• Con O'Neill (diplomat) (1912–1988), British diplomat

Topics referred to by the same term

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