Earl Howe is a title that has been created twice: once in the Peerage of Great Britain and another time in the Peerage of the United Kingdom.

The related title of Viscount Howe was created in the Peerage of Ireland in 1701 for Scrope Howe. The fourth Viscount, Richard, was created Earl Howe and Baron Howe in 1788. Upon his death, each of the three titles took a different line of descent. The Earldom became extinct since he left no male issue. The Viscountcy passed to his brother William, and at William's death became extinct. Finally, the Barony passed to his daughter Sophie because of a special remainder in the letters patent creating the barony. Sophie's successor was Richard Curzon-Howe, who had in 1821 received the second creation of the Earldom of Howe. Thereafter, the earldom and barony remained united.

The titles held by the Earl are: Viscount Curzon (created 1802) in the Peerage of the United Kingdom, and Baron Howe (1788) and Baron Curzon (1794) in the Peerage of Great Britain.

Viscounts Howe (1701)

• Scrope Howe, 1st Viscount Howe (1648-1713)
• Emanuel Scrope Howe, 2nd Viscount Howe (c. 1700-1735)
• George Howe, 3rd Viscount Howe (c. 1725-1758)
• Richard Howe, 4th Viscount Howe (1726-1799) (became Earl Howe in 1788)
• William Howe, 5th Viscount Howe (1729-1814)

Earls Howe, First Creation (1788)

• Richard Howe, 1st Earl Howe (1726-1799)

Barons Howe (1788)

• Richard Howe, 1st Earl Howe (1726-1799)
• Sophia Charlotte Curzon, 2nd Baroness Howe (1762-1835)
• Richard William Curzon-Howe, 3rd Baron Howe (1796-1870) (became Earl Howe in 1821)

Earls Howe, Second Creation (1821)

• Richard William Curzon-Howe, 1st Earl Howe (1796-1870)
• George Augustus Frederick Louis Curzon-Howe, 2nd Earl Howe (1821-1876)
• Richard William Penn Curzon-Howe, 3rd Earl Howe (1822-1900)
• Richard George Penn Curzon, 4th Earl Howe (1861-1929)
• Francis Richard Henry Penn Curzon, 5th Earl Howe (1884-1964)
• Edward Richard Assheton Curzon, 6th Earl Howe (1908-1984)
• Frederick Richard Penn Curzon, 7th Earl Howe (b. 1951)