Philip Jennings (c.1679 – 10 February 1740) of Dudleston Hall, Shropshire was an English lawyer and politician.
He was the oldest son of Edward Jennings, QC, a barrister who later became Member of Parliament (MP) for East Looe. Philip was a nephew of Admiral Sir John Jennings. He was educated at Eton and St John's College, Cambridge. He was called to the bar at the Inner Temple in 1704 and became a bencher in 1735. He succeeded his father in 1725.
He sat in the House of Commons of Great Britain from 1715 to 1722, as MP for Queenborough.
He married twice: firstly in 1705, Diana, the daughter of Sir William Bowyer, 2nd Bt., of Denham, Buckinghamshire, with whom he had a son, who predeceased him, and a daughter and secondly in 1721, Dorothy, the daughter of George Clerke of Launde Abbey, Leicestershire, with whom he had 3 sons and 6 daughters.