The title of Earl of Swinton was created in the Peerage of the United Kingdom in 1955 for Philip Cunliffe-Lister, 1st Viscount Swinton, a Conservative politician.

The earl holds the subsidiary titles of Viscount Swinton, of Masham in the County of York (1935), and Baron Masham, of Ellington in the County of York (1955).

Earls of Swinton (1955)

• Philip Cunliffe-Lister, 1st Earl of Swinton (1884-1972)
• David Yarburgh Cunliffe-Lister, 2nd Earl of Swinton (b. 1937)

Heir Presumptive: The Honourable Nicholas John Cunliffe-Lister (brother of the present Earl)