Walter Chetwynd (c. 1680 – 1732), of Grendon, Warwickshire, was a British politician who sat in the House of Commons from 1715 to 1731. He was appointed Governor of Barbados, but died before he took up residence. Chetwynd was the eldest son of John Chetwynd of Ludlow, Shropshire and brother of William Chetwynd of Beddington, Surrey. He married Barbara Goring, daughter of John Goring of Kingston, Staffordshire. In 1719, he succeeded to the Grendon estate of his grandfather, Charles Chetwynd of Grendon.