Sir Thomas Cave, 3rd Baronet DL (19 April 1681 – 21 April 1719) of Stanford Hall, Leicestershire was a British Tory politician who sat in the House of Commons from 1711 to 1719. Cave was the eldest son of Sir Roger Cave, 2nd Baronet and his first wife Martha Browne, daughter of John Browne of Eydon, Northamptonshire. He was educated at Rugby School and matriculated at Christ Church, Oxford on 27 January 1699, aged 16. On 20 February 1703, Cave married Hon. Margaret Verney, youngest daughter of John Verney, 1st Viscount Fermanagh at St Giles's-in-the-Fields Church. He succeeded his father in the baronetcy on 11 October 1703.