The Marquess holds the subsidiary titles of Viscount Weymouth (1682) and Baron Thynne (1682), both in the Peerage of England, and is an English baronet.

Marquesses of Bath (1789)

• Thomas Thynne, 1st Marquess of Bath (1734-1796)
• Thomas Thynne, 2nd Marquess of Bath (1765-1837)
• Henry Frederick Thynne, 3rd Marquess of Bath (1797-1837)
• John Alexander Thynne, 4th Marquess of Bath (1831-1896)
• Thomas Henry Thynne, 5th Marquess of Bath (1862-1946)
• Henry Frederick Thynne, 6th Marquess of Bath (1905-1992)
• Alexander George Thynne, 7th Marquess of Bath (b. 1932)