Sir Thomas Gery Cullum, 7th Baronet FSA (30 November 1741 – 8 September 1831) was a medical doctor educated at London Charterhouse and Trinity College, Cambridge, and who later practised surgery at Bury St. Edmunds, Suffolk, where he served as an alderman and DL for Suffolk. Cullum was the son of Sir John Cullum, 5th Baronet, of Hardwick House, Hardwick, Suffolk.