Grey Neville (23 September 1681 – 24 April 1723) was an English politician. He was Member of Parliament for Abingdon from 1705 to 1708, Wallingford from 1708 to 1710 and Berwick-upon-Tweed from 1715 to 1723.
He was the elder son of Richard Neville of Billingbear House in Berkshire and his wife Katherine Grey, the daughter of Ralph Grey, 2nd Baron Grey of Werke, and the brother of Henry Neville, later Henry Grey. He was born in the parish of St Giles's-in-the-Fields, London, 23 September 1681.
Grey was elected M.P. for Abingdon 10 May 1705. A petition against his return was unsuccessfully presented by his tory opponent, Sir Simon Harcourt. In the next parliament, elected in 1708, Neville sat for Wallingford. On 1 February 1715 he was elected for Berwick-on-Tweed, and was re-elected for the same constituency 31 March 1722. He supported the Act for naturalising foreign Protestants in 1708, voted for the impeachment of Henry Sacheverell, and generally acted with the Whigs. Neville inherited Billingbear in 1717.
When the first developed in the Whig party, he joined the Walpole faction, and voted with the majority which threw out the Peerage Bill of 1719. Neville's most prominent action as a member of the House of Commons was his defence in 1721 of James Craggs the elder and John Aislabie, former chancellor of the exchequer, who had been implicated in the affairs of the South Sea Company.
He served as one of the Commissioners for Stating the Debts due to the Army.