Earl of Kildare is a title in the Peerage of Ireland.

John FitzThomas FitzGerald, the eldest son of Thomas, Lord Offaly, was created Earl of Kildare by Letters Patent by King Edward II on May 14, 1316.

The tenth Earl was attainted and his honours were forfeit in 1537. In 1554, the claimant who would have been the next earl but for the attainder was created Earl of Kildare. He was subsequently restored to the original Patent in 1569 (as 11th earl).

The second (1554-created) earldom became extinct in 1599, although the original earldom survived. The twentieth Earl was created Marquess of Kildare in 1761, and Duke of Leinster in 1766.

Earls of Kildare

• John FitzGerald, 1st Earl of Kildare (1250-1316)
• Thomas FitzGerald, 2nd Earl of Kildare (d. 1328)
• Richard FitzGerald, 3rd Earl of Kildare (1317-1329)
• Maurice FitzGerald, 4th Earl of Kildare (1318-1390)
• Gerald FitzGerald, 5th Earl of Kildare (d. 1410)
• John FitzGerald, 6th Earl of Kildare (d. 1427)
• Thomas FitzGerald, 7th Earl of Kildare (d. 1478)
• Gerald FitzGerald, 8th Earl of Kildare (c. 1456-1513)
• Gerald FitzGerald, 9th Earl of Kildare (1487-1534)
• Thomas FitzGerald, 10th Earl of Kildare (d. 1537) (forfeit 1537)
• Gerald FitzGerald, 11th Earl of Kildare (1525-1585) (restored 1569)
• Henry FitzGerald, 12th Earl of Kildare (1562-1597)
• William FitzGerald, 13th Earl of Kildare (d. 1599)
• Gerald FitzGerald, 14th Earl of Kildare (d. 1612)
• Gerald FitzGerald, 15th Earl of Kildare (1611-1620)
• George FitzGerald, 16th Earl of Kildare (1612-1660)
• Wentworth FitzGerald, 17th Earl of Kildare (1634-1664)
• John FitzGerald, 18th Earl of Kildare (1661-1707)
• Robert FitzGerald, 19th Earl of Kildare (1675-1744)
• James FitzGerald, 20th Earl of Kildare (1722-1773) (1st Duke of Leinster from 1766)
• See Duke of Leinster for further Earls of Kildare.

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