Viscount Gage, of Castle Island in the County of Kerry of the Kingdom of Ireland, is a title in the Peerage of Ireland. It was created in 1720 for Thomas Gage, along with the subsidiary title of Baron

William Hall Gage, 2nd Viscount Gage was a Peer of Ireland and a British politician who sat in the House of Commons between 1744 and 1780 when he was raised to the peerage of Great Britain as Baron Ga