Thynne is a surname. Notable people and characters with the surname include:
- Lord Alexander Thynne (1873âÂÂ1918), British soldier and Conservative politician
- Andrew Joseph Thynne (1847âÂÂ1927), Australian politician
- Lord Edward Thynne (1807âÂÂ1884), British soldier and Conservative politician
- Francis Thynne (1544âÂÂ1608), officer of arms at the College of Arms in London
- George Thynne, 2nd Baron Carteret (1770âÂÂ1838), British Tory politician
- Henry Thynne, 3rd Marquess of Bath (1797âÂÂ1837), British naval commander and politician
- Henry Thynne, 6th Marquess of Bath (1905âÂÂ1992), British politician, aristocrat and landowner
- Lord Henry Thynne (1832âÂÂ1904), British Conservative politician
- Hercules Grytpype-Thynne, character from the British 1950s comedy radio programme The Goon Show
- James Thynne (1605âÂÂ1670), English landowner and politician who sat in the House of Commons in two periods between 1640 and 1670
- Jane Thynne (born 1961), British novelist, journalist and broadcaster
- Joan Thynne (1558âÂÂ1612), English gentlewoman, wife of John Thynne (d. 1604)
- John Thynne (1515âÂÂ1580), English steward to Edward Seymour, 1st Duke of Somerset (c. 1506 â 1552) and a member of Parliament
- John Thynne (died 1604), landowner and member of Parliament, son of the above
- John Thynne, 3rd Baron Carteret (1772âÂÂ1849), British peer and politician
- John Thynne, 4th Marquess of Bath (1831âÂÂ1896), British diplomat and a peer for almost sixty years
- Lady Louisa Thynne (1760âÂÂ1832), British naturalist and botanical illustrator, later Louisa Finch, Countess of Aylesford
- Thomas Thynne (died 1639) (1578âÂÂ1639), English landowner and member of Parliament
- Thomas Thynne (died 1669) (1610âÂÂ1669), English politician who sat in the House of Commons in 1660
- Thomas Thynne, 1st Viscount Weymouth (1640âÂÂ1714), English politician who served as president of the Board of Trade from 1702 to 1705
- Thomas Thynne (died 1682) (1647âÂÂ1682), English landowner and politician who sat in the House of Commons from 1670 to 1682
- Thomas Thynne, 2nd Viscount Weymouth (1710âÂÂ1751), English peer, descended from the first Sir John Thynne of Longleat House
- Thomas Thynne, 1st Marquess of Bath (1734âÂÂ1796), British politician who held office under George III
- Thomas Thynne, 2nd Marquess of Bath (1765âÂÂ1837), British peer
- Thomas Thynne, 5th Marquess of Bath (1862âÂÂ1946), British landowner and Conservative politician
- Ulric Oliver Thynne (1871âÂÂ1957), British champion polo player