Henry Oge O'Neill, also spelt as Henry Og O'Neill (), may refer to:
*Henry Og O'Neill, son of Conn Mor O'Neill,
king of Tyrone
*Henry Og MacShane, son of
Henry MacShane O'Neill
Henry MacShane O'Neill (; – 1622) was an Irish nobleman and a son of Shane O'Neill. He was the leader of the MacShanes in the late 16th century and early 17th century, and sought control of the O'Neill Clan, fighting with his brother Ar ...
{{hndis, Oneill, Henry Oge