The Feudal barony of Cardinham (or Honour of Cardinham) is one of the three feudal baronies in Cornwall which existed during the medieval era. Its caput was at Cardinham Castle, Cornwall. The Barony was held in recent times by the Vivian family, the last being Nicholas Vivian, 6th Baron Vivian. Brigadier Nicholas Crespigny Laurence Vivian, 6th Baron Vivian (11 December 1935 - 28 February 2004), conveyed the title to John Anthony Vincent of Edifici Maxim's, Carrer General, Arsinal, Principat Andora, in 1995. Mr. Vincent was a member of the Manorial Society of Great Britain and died in Douglas, Isle of Man, on 31 March 2018. The Barony was then conveyed after the probate of his estate to an American citizen on 25 May 2019.