The title of Viscount Gage was created in the Peerage of Ireland in 1720. The Viscount bears the subsidiary titles of Baron Gage of Castlebar (1720) in the Peerage of Ireland, and Baron Gage of High Meadow (1790) in the Peerage of Great Britain. Under the latter title he sat in the House of Lords before 1999.

Viscounts Gage (1720)

• Thomas Gage, 1st Viscount Gage (d. 1754)
• William Hall Gage, 2nd Viscount Gage (1718_1791)
• Henry Gage, 3rd Viscount Gage (1761-1808)
• Henry Hall, 4th Viscount Gage (1791-1877)
• Henry Charles Gage, 5th Viscount Gage (1854_1912)
• Henry Rainald Gage, 6th Viscount Gage (1895_1982)
• George John St Clere Gage, 7th Viscount Gage (b. 1932)