Sir Hew Dalrymple-Hamilton, 4th Baronet (1774 – 23 February 1834) was a British politician. He was the eldest son of Sir Hew Dalrymple, 3rd Baronet. He succeeded his father in February, 1800 and took the additional surname of Hamilton. He matriculated at Christ Church, Oxford on 24 October 1791. On 16 June 1814, he was made a DCL. He served in the British Army as an Ensign in the 1st Foot Guards from 1792, as a lieutenant and captain from 1794 and as a major in the 28th Light Dragoons from 1799 to c.1800.