Lieutenant-General Thomas Wentworth, 1st Earl of Strafford, KG, also known as in Jacobite Peerage as the 1st Duke of Strafford and 3rd Baron Raby from 1695 to 1711, was an English peer, diplomat and statesman who served as First Lord of the Admiralty.

The Jacobite peerage includes those peerages created by James II and VII, and the subsequent Jacobite pretenders, after James's deposition from the thrones of England, Scotland and Ireland following the Glorious Revolution of 1688. These creations were not recognised in English, Scots or Irish law, but the titles were used in Jacobite circles in Continental Europe and recognised by France, Spain and the Papacy.