Earl of Iveagh (pronounced "eye-vee") is a title in the Peerage of the United Kingdom. It was created in 1919 for the businessman and philanthropist Edward Guinness, 1st Viscount Iveagh. He was the third son of Sir Benjamin Guinness, 1st Baronet, of Ashford, and the great-grandson of Arthur Guinness, the founder of the Guinness brewery. Guinness had already been created a Baronet, of Castle Knock in the County of Dublin, in 1885, Baron Iveagh, of Iveagh in the County of Down, in 1891, Viscount Iveagh, of Iveagh in the County of Down, in 1905, and was made Viscount Elveden, of Elveden in the County of Suffolk, at the same time he was given the earldom. As of 2009 the titles are held by his great-great-grandson, the fourth Earl, who succeeded his father in 1992. As a descendant of the first Guinness Baronet of Ashford he is also in remainder to this title.
The Conservative politician Walter Guinness, 1st Baron Moyne, was the third son of the first Earl.
The family seat is Elveden Hall in Suffolk.
The heir apparent is the present holder's son Arthur Benjamin Geoffrey Guinness, Viscount Elveden (b. 2003)