Thomas Thynn, 5th Viscount Weymouth, was a British nobleman born on March 24, 1797. He inherited the title of Viscount Weymouth in 1837 after the death of his father, Thomas Thynn, 4th Viscount Weymouth. The title is part of the Peerage of the United Kingdom and is associated with the family estate at Longleat House in Wiltshire. Viscount Weymouth was known for his involvement in local politics and his contributions to the community. He served as a Member of Parliament for Devizes from 1820 to 1832. Thomas Thynn passed away on June 24, 1837, and was succeeded by his son, Thomas Thynn, 6th Viscount Weymouth.