The Thynn Baronetcy is a title in the Baronetage of the United Kingdom, created in 1641. It was established for the Thynn family, originally from Somerset, England. The title has been passed down through generations, with the current baronet being the 10th holder of the title. The baronetcy is associated with the family seat at Longleat, a historic estate known for its stunning architecture and gardens. The Thynn family has played a significant role in British history, with members involved in various political and social endeavors over the centuries.