The Earldom of Donoughmore was created in 1800 in the Peerage of Ireland. Other titles held by the Earl are: Viscount Donoughmore (created 1797) and Baron Donoughmore (1783) in the Peerage of Ireland, and Viscount Hutchinson (1821) in the Peerage of the United Kingdom.

Earls of Donoughmore (1800)

• Richard Hely-Hutchinson, 1st Earl of Donoughmore (1756-1825), elected a Representative Peer 1800
• John Hely-Hutchinson, 2nd Earl of Donoughmore (1757-1832)
• John Hely-Hutchinson, 3rd Earl of Donoughmore (1787-1851)
• Richard John Hely-Hutchinson, 4th Earl of Donoughmore (1823-1866)
• John Luke George Hely-Hutchinson, 5th Earl of Donoughmore (1848-1900)
• Richard Walter Hely-Hutchinson, 6th Earl of Donoughmore (1875-1948)
• John Michael Henry Hely-Hutchinson, 7th Earl of Donoughmore (1902-1981)
• Richard Michael John Hely-Hutchinson, 8th Earl of Donoughmore (b. 1927)