The Marquess holds the subsidiary titles of Earl of Wycombe (1784), Earl of Kerry (1723), Earl of Shelburne (1753), Viscount Calne and Calstone (1784), Viscount Clanmaurice (1723), Viscount Fitzmaurice (1751), Baron Wycombe of Chipping Wycombe (1760), Baron Kerry and Lixnaw (1172), Baron Kerry (1260), Baron Lixnaw (1555), and Baron Dunkeron (1751). The subsidiary titles are all in the Peerage of Ireland, except for Earl of Wycombe, Viscount Calne and Calstone and Baron Wycombe of Chipping Wycombe in the Peerage of Great Britain. The title Earl of Wycombe is the courtesy title for the eldest son of the Marquess.

Marquesses of Lansdowne (1784)