Lieutenant General Sir Ralph Abercromby KB (7 October 1734 – 28 March 1801) was a British soldier and politician. He rose to the rank of lieutenant-general in the British Army, was appointed Governor of Trinidad, served as Commander-in-Chief, Ireland, and was noted for his services during the French Revolutionary Wars, ultimately in the Egyptian campaign. His strategies are ranked amongst the most daring and brilliant exploits of the British army.