John Lloyd (c. 1717 – 1755) of Peterwell, Cardiganshire, was a British lawyer and Whig politician who sat in the House of Commons from 1747 to 1755. Lloyd was the son of Walter Lloyd of Peterwell, Cardiganshire and his wife Elizabeth Evans, daughter of Daniel Evans of Peterwell. He was admitted at Inner Temple in 1735 and matriculated at Jesus College, Oxford on 16 April 1735, aged 17. He was called to the bar in 1739. In 1747 he succeeded his father to Peterswell. He married Elizabeth Le Heup, daughter of Isaac le Heup, of Gunthorpe, Norfolk on 24 March 1750. He succeeded his brother-in-law Sir Lucius C. Lloyd, 3rd Baronet to Maesyfelin, Cardiganshire in 1750.