The title Duke of Queensberry was created in the Peerage of Scotland on 3 February 1684 along with the subsidiary title Marquess of Dumfriesshire for the 1st Marquess of Queensberry. The Dukedom was held along with the Marquessate of Queensberry until the death of the 4th Duke in 1810, when the Marquessate was inherited by Sir Charles Douglas of Kelhead, 5th Baronet, while the Dukedom was inherited by the 3rd Duke of Buccleuch. Since then the title of Duke of Queensberry has been held by the Dukes of Buccleuch.

Marquess of Queensberry is a title in the Peerage of Scotland. The title has been held since its creation in 1682 by a member of the Douglas family. The Marquesses also held the title of Duke of Queensberry from 1684 to 1810, when it was inherited by the Duke of Buccleuch.