John FitzGerald, 18th Earl of Kildare
John FitzGerald, 18th Earl of Kildare (1661 – 9 November 1707), styled Lord Offaly until 1664, was an Irish peer.
Kildare married firstly, Mary, daughter of Henry O'Brien, Lord O'Brien. They had one child, Henry FitzGerald, Lord Offaly (1683–1684), who died as an infant. After Mary's death in November 1683, aged 21, Kildare married secondly, Lady Elizabeth, daughter of Richard Jones, 1st Earl of Ranelagh, on 12 June 1684. There were no children from this marriage. Kildare died in November 1707 and was succeeded in the earldom by his first cousin, Robert FitzGerald, 19th Earl of Kildare. The Countess of Kildare died in April 1758.
|Parliament of England|
Sir John Tremayne
| Member of Parliament for Tregony
With: Hugh Fortescue
|Peerage of Ireland|
| Earl of Kildare