Sir Thomas Dereham, 4th Baronet

Sir Thomas Dereham, 4th Baronet
Medal of Thomas Dereham aged 36 by Massimiliano Soldani Benzi
Born1678
West Dereham Abbey, Norfolk, England
Died16 January 1738(1738-01-16) (aged 59–60)
Rome, Italy
NationalityEnglish
Known forInformal Jacobite ambassador to Rome

Sir Thomas Dereham, 4th Baronet (or Derham) (ca. 1678–1739), FRS, was an English baronet who spent most of his life in Italy, where he acted as an informal representative for the Old Pretender, known as James III to his supporters.