Sir Thomas Hanmer, 4th Baronet (24 September 1677 – 7 May 1746) was Speaker of the House of Commons of Great Britain from 1714 to 1715, discharging the duties of the office with conspicuous impartiality. His second marriage was the subject of much gossip as his wife eloped with his cousin Thomas Hervey and lived openly with him for the rest of her days. He is, however, perhaps best remembered as being one of the early editors of the works of William Shakespeare.
He was identified with the Hanoverian Tory faction at the time of the Hanoverian Succession in 1714.