Viscount O'Neill, of Shane's Castle in the County of Antrim, was a title in the Peerage of Ireland.
He had already been created Baron O'Neill, of Shane's Castle in the County of Antrim, in 1793, also in the Peerage of Ireland.
In 1800 he was created Viscount Raymond and Earl O'Neill in the Peerage of Ireland.
The barony and viscountcy of O'Neill were passed on to his only brother, the third Viscount.
The family seat was Shane's Castle, County Antrim.