Walter Carey (also spelt 'Cary') FRS (17 October 1685 – 27 April 1757), of West Sheen, Surrey, was a British administrator and politician who sat in the House of Commons for 35 years from 1722 to 1757.
Carey was the eldest son of Walter Carey of Everton, Bedfordshire and his wife Annabella Halford, daughter of Sir William Halford.
He matriculated at New College, Oxford on 14 December 1704, aged 18 and was awarded B.A.
He was surveyor general to the Prince of Wales (1723–25), Warden of the Mint (1725–27) and a Lord of Trade (1727–30).
He had married twice: firstly Elizabeth, the daughter of Anthony Sturt, MP, of London and widow of John Jeffreys, MP and secondly Elizabeth, the daughter and coheiress of Anthony Collins of Baddow Hall, Essex.