Thomas Thynne, 2nd Marquess of Bath (25 January 1765 – 27 March 1837) was the Tory MP for Weobley from 1786 to 1790 and for Bath from 1790 to 1796. The son of Thomas Thynne, 1st Marquess of Bath, he also served as Lord Lieutenant of Somerset from 1819 to 1837.