4th Earl of Orford may refer to:

• Horace Walpole (1717–1797), later 4th Earl of Orford (second creation), English art historian, man of letters, antiquarian and Whig politician
• Horatio Walpole, 4th Earl of Orford (third creation) (1813–1894), British peer and Conservative politician

This disambiguation page lists articles associated with the title 4th Earl of Orford.
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