The Thynne Baronetcy is a title in the Baronetage of the United Kingdom, created in 1806. It was established for the Thynne family, who were prominent landowners in England. The title is associated with the estate of Longleat, located in Wiltshire, which has been the family seat for generations. The first baronet was Sir Thomas Thynne, who was recognized for his contributions to society and his role in local governance. The title has been passed down through the family, with several baronets serving in various public roles, maintaining the family's historical significance in British aristocracy.