John Villiers, 1st Earl Grandison

John Villiers, 1st Earl Grandison, 5th Viscount Grandison (circa 1684 – 14 May 1766), was an Anglo-Irish nobleman and politician. He was a member of the Villiers family and held titles in the Peerage of Ireland.

Born around 1684, Villiers was the son of Brigadier-General Hon. Edward FitzGerald-Villiers and Katherine FitzGerald. His paternal grandfather was George Villiers, 4th Viscount Grandison. His father adopted the surname FitzGerald upon marriage, and John Villiers was also known as John FitzGerald.

He received education at Eton College and Magdalene College, Cambridge. On 16 December 1699, he succeeded his grandfather as the 5th Viscount Grandison in the Irish peerage.

In 1704, he served as the Governor of the City of Waterford. Due to his title being in the Irish peerage, he was eligible to stand in the House of Commons of England. In May 1705, he contested the parliamentary seat for the rotten borough of Old Sarum. He tied with Charles Mompesson for the second seat. A legal dispute ensued lasting seven months, after which the House of Commons awarded the seat to Mompesson.

In 1721, he was appointed to the Privy Council of Ireland. On 11 September 1721, he was elevated to the rank of Earl Grandison, with the peerage designated of County Leitrim.

In February 1706, Villiers married Frances Cary, daughter of Edward Cary and Anne Lucas. They had three children, with James FitzGerald-Villiers being their eldest son. Only one of their children, a daughter, survived Villiers.

John Villiers died on 14 May 1766. His earldom became extinct upon his death, as he had no surviving male heirs. The viscountcy, however, was inherited by his second cousin, William Villiers, 3rd Earl of Jersey.