Thomas Hay, 7th Earl of Kinnoull (1660 – 5 January 1719), styled as Viscount Dupplin from 1697–1709, was a Scottish peer and Conservative politician.

[1] Thomas Hay was a Tory member of the Scottish parliament for Perthshire between 1693 and 1697.

William was given a life peerage by Queen Anne and upon his death on 10 May 1709, the titles passed to Thomas.

[3] The earl and his heir were briefly imprisoned in Edinburgh Castle on suspicion of Jacobite sympathies during the 1715 uprising.

[2] He married Elizabeth, daughter of William Drummond, 1st Viscount Strathallan, on 20 December 1683.