Thomas Thynne (1647/8–12 February 1682) was an English landowner of the family that is now headed by the Marquess of Bath and politician who sat in the House of Commons from 1670 to 1682. He went by the nickname "Tom of Ten Thousand" due to his great wealth. He was a friend of the Duke of Monmouth, a relationship referred to in John Dryden's satirical work Absalom and Achitophel where Thynne is described as "Issachar, his wealthy western friend".
Thynne was the son of Sir Thomas Thynne, and his wife Stuarta Balquanquill, daughter of Dr. Walter Balquanquill.[1] His father was a younger son of Sir Thomas Thynne of Longleat, Wiltshire. In 1670 Thynne succeeded to the family estates at Longleat on the death of his uncle Sir James Thynne without issue. He also succeeded his uncle as Member of Parliament for Wiltshire, and sat until his death in 1682.
On 15 November 1681 Thynne married the wealthy Lady Elizabeth Percy, only child of Joceline Percy, 11th Earl of Northumberland, who was then aged 14. The couple were married less than a year.