The Barony of Dunsany was created in the Peerage of Ireland in 1439. It is still extant.

Barons Dunsany (1439)

• Christopher Plunkett, 1st Baron Dunsany (1410-1463)
• Richard Plunkett, 2nd Baron Dunsay (d. c. 1480)
• John Plunkett, 3rd Baron Dunsany (d. 1500)
• Edward Plunkett, 4th Baron Dunsany (d. 1521)
• Robert Plunkett, 5th Baron Dunsany (d. 1559)
• Christopher Plunkett, 6th Baron Dunsany (d. 1564)
• Patrick Plunkett, 7th Baron Dunsany (d. 1601)
• Christopher Plunkett, 8th Baron Dunsany (1603)
• Patrick Plunkett, 9th Baron Dunsany (1595-1668)
• Christopher Plunkett, 10th Baron Dunsany (d. 1690)
• Randall Plunkett, 11th Baron Dunsany (d. 1735)
• Edward Plunkett, 12th Baron Dunsany (1713-1781)
• Randall Plunkett, 13th Baron Dunsany (1739-1821)
• Edward Wadding Plunkett, 14th Baron Dunsany (1773-1848), elected a Representative Peer in 1836
• Randall Edward Plunkett, 15th Baron Dunsany (1804-1852), elected a Representative Peer in 1850
• Edward Plunkett, 16th Baron Dunsany (1808-1889), elected a Representative Peer in 1864
• John William Plunkett, 17th Baron Dunsany (1853-1899), elected a Representative Peer in 1893
• Edward John Moreton Drax Plunkett, 18th Baron Dunsany (1878-1957)
• Randal Arthur Henry Plunkett, 19th Baron Dunsany (1906-1999)
• Edward John Carlos Plunkett, 20th Baron Dunsany (b. 1939)