The Earldom of Halsbury was created in the Peerage of the United Kingdom in 1898. The subsidiary titles of the Earldom are Viscount Tiverton (created 1898) and Baron Halsbury (1885). Both of the subsidiary titles are in the Peerage of the United Kingdom.

Earls of Halsbury (1898)

• Hardinge Stanley Giffard, 1st Earl of Halsbury (1823-1921)
• Hardinge Goulburn Giffard, 2nd Earl of Halsbury (1880-1943)
• John Anthony Hardinge Giffard, 3rd Earl of Halsbury (1908-2000)
• Adam Edward Giffard, 4th Earl of Halsbury (b. 1934)