John Eyre (12 April 1665 – 2 November 1715) of Brickworth, Wiltshire was an English lawyer and Whig politician who sat in the English and British House of Commons from between 1698 and 1715. Eyre was the son of Sir Giles Eyre of Brickworth House and his wife Dorothy Ryves. He matriculated at Merton College, Oxford on 10 February 1682, and also entered Lincoln's Inn on 31 May 1682. He married Mary Williams of St. James in the Fields by licence dated 18 June 1687, and was called to the bar in 1688. His father, whose estate had considerable electoral influence, died in June 1695.