The title Earl of Kerry was created in 1723 for Thomas Fitzmaurice, the holder of the ancient Irish barony of Kerry, which was created in the thirteenth century. The fourth Earl had previously succeeded to the Marquessate of Lansdowne, and the titles have remained merged since.

Barons Kerry (1223)

• Thomas Fitzmaurice, 1st Baron Kerry (d. c. 1260)
• Maurice Fitzthomas Fitzmaurice, 2nd Baron Kerry (d. 1303)
• Nicholas Fitzmaurice, 3rd Baron Kerry (d. 1324)
• Maurice Fitzmaurice, 4th Baron Kerry (d. 1339)
• John Fitzmaurice, 5th Baron Kerry (d. 1348)
• Maurice Fitzmaurice, 6th Baron Kerry (d. 1398)
• Patrick Fitzmaurice, 7th Baron Kerry (d. c. 1410)
• Thomas Fitzmaurice, 8th Baron Kerry (d. 1469)
• Edmond Fitzmaurice, 9th Baron Kerry (d. 1498)
• Edmond Fitzmaurice, 10th Baron Kerry (d. 1543)
• Edmond Fitzmaurice, 11th Baron Kerry (d. 1541)
• Patrick Fitzmaurice, 12th Baron Kerry (d. 1547)
• Thomas Fitzmaurice, 13th Baron Kerry (d. 1549)
• Edmond Fitzmaurice, 14th Baron Kerry (d. 1549)
• Gerard Fitzmaurice, 15th Baron Kerry (d. 1550)
• Thomas Fitzmaurice, 16th Baron Kerry (c. 1502-1590)
• Patrick Fitzthomas Fitzmaurice, 17th Baron Kerry (c. 1541-1600)
• Thomas Fitzmaurice, 18th Baron Kerry (1574-1630)
• Patrick Fitzmaurice, 19th Baron Kerry (1595-1661)
• William Fitzmaurice, 20th Baron Kerry (1633-1697)
• Thomas Fitzmaurice, 21st Baron Kerry (1668-1741) (became Earl of Kerry in 1723)

Earls of Kerry (1723)

• Thomas Fitzmaurice, 1st Earl of Kerry (1668-1741)
• William Fitzmaurice, 2nd Earl of Kerry (1694-1747)
• Francis Thomas Fitzmaurice, 3rd Earl of Kerry (1740-1818)
• Henry Petty-Fitzmaurice, 3rd Marquess of Lansdowne (1780-1863)
• See Marquess of Lansdowne for further Earls of Kerry.