Lieutenant-General Sir Samuel Auchmuty, GCB (22 June 1758 – 11 August 1822) was an American-born British Army general, who served in a number of military campaigns in India, Africa and South America during the Napoleonic period.

Auchmuty was born in New York City in 1758, and educated at King's College, the progenitor of today's Columbia University, where he graduated in 1775.

He was in England in 1741 as agent for the colony, and in that year published in London a pamphlet entitled The Importance of Cape Breton to the British Nation, and a Plan for Taking the Place.

His and Thomas Hutchinson's letters from Boston to England, which were sent back to the colonies by Benjamin Franklin in 1773, caused great excitement.

Their second son was General Samuel Benjamin Auchmuty, [4] A loyalist, during the American War of Independence he was given an ensigncy in the loyal army in 1777, and in 1778 a lieutenancy in the 45th Foot, without purchase.

[5] In 1800 he was made lieutenant-colonel and brevet colonel; and in the following year, as Adjutant-general to Sir David Baird in Egypt, took a distinguished share in the march across the desert and the Capture of Alexandria.