Sir George Hay, 1st Earl of Kinnoull, PC (1570 – 16 December 1634) was 6th Lord Kinfauns from 1621 to 1627,[1][2][3] then 1st Viscount of Dupplin from 1627 before advancing to the earldom in 1633.

On 18 February 1598, he was granted the Carthusian priory of Perth and a seat in Parliament, but, finding the rents too low to live on, he returned the peerage.

He discovered that Marie Stewart, "My Lady Marre", had obtained a chest containing important documents concerning taxes which had been kept by the late Archibald Primrose, clerk of taxations.

[5] He died of apoplexy in London and was buried in Kinnoull Parish Church, in which a monument was erected in his honour.

[6] He married Margaret, daughter of Sir James Halyburton of Pitcur manor, Kettins parish, on 15 November 1595.