Sir James Thynne (1605 – 12 October 1670) was an English landowner and politician who sat in the House of Commons in two periods between 1640 and 1670.
In 1655 Thynne founded an almshouse at Longbridge Deverill. Following the Restoration, he was High Sheriff of Wiltshire in 1661. Sir Christopher Wren advised him on improvements to the house at Longleat which included the great stairs and stone terrace. In 1664 he was re-elected MP for Wiltshire in the Cavalier Parliament and sat until his death in 1670.
|Parliament of England|
Philip Lord Herbert
Sir Francis Seymour
|Member of Parliament for Wiltshire
With: Sir Henry Ludlow
- Knights of England
- Willis, Browne (1750). Notitia Parliamentaria, Part II: A Series or Lists of the Representatives in the several Parliaments held from the Reformation 1541, to the Restoration 1660 .... London. pp. 229–239.
- British Listed Buildings Sir James Thynne House
- Dictionary of National Biography
- Leigh Rayment's Historical List of MPs – Constituencies beginning with "W" (part 4)[self-published source][better source needed]
- Burke, Sir Bernard, (1938 ed) Burke's Peerage, Baronetage and Knightage. Shaw, London. p.243