Thomas Hay (1733–1786) was a British Army officer and politician who sat in the House of Commons from 1768 to 1780.
Hay was the eldest son of William Hay of Glyndebourne, Sussex and his wife Elizabeth Pelham, daughter of Thomas Pelham MP of Catsfield Place, Sussex and was born on 3 July 1733.
He served on the raid on Cherbourg in 1758 and was in Germany, as aide-de-camp to Granby from 1759 to 1763.
[1] In 1768 the Duke of Newcastle chose Hay as candidate for Lewes but later changed his mind.
[1] Hay was described by George Hardinge as “a modest, virtuous, respectable, and sensible man; with no brilliancy of talent, but with a high sense of honour”.