Thomas Thynne, 1st Marquess of Bath (1734-1796), was a British nobleman and politician. He was born into the Thynne family, which held significant land and influence in England. In 1789, he was elevated to the title of Marquess of Bath, reflecting his status and contributions to society. He served as a Member of Parliament for several years and was known for his involvement in local affairs. The Marquess was also associated with the Longleat House, a grand estate that remains a notable landmark in Wiltshire, England, showcasing the family's historical significance.