John Charles Villiers, 3rd Earl of Clarendon PC (14 November 1757 – 22 December 1838), styled The Honourable John Villiers until 1787 and The Right Honourable John Villiers from 1787 to 1824, was a British peer and Member of Parliament from the Villiers family.
Villiers, the second son of Thomas Villiers, 1st Earl of Clarendon, and his wife Lady Charlotte, daughter of William Capel, 3rd Earl of Essex was born on 14 November 1757. He was educated at Eton and St John's College, Cambridge whence he graduated M.A. 1776 and LL.D. on 30 April 1833, and was called to the bar at Lincoln's Inn on 22 June 1779.
In January 1784 Lord Camelford (probably at Pitt the Elder's request) brought Villiers into Parliament at a by-election for Old Sarum, and he represented that rotten borough until 1790, and then sat for Dartmouth 1790–1802, and for the Tain Burghs from 1802 until 27 May 1805, when he accepted the Chiltern Hundreds (in order to resign his Parliamentary seat). He was afterwards member for Queenborough 1807–1812 and 1820–1824. Villiers did not make his mark in Parliament as a debater, and was styled "a mere courtier, famous for telling interminable long stories".