Alexander Gordon (1781–1873) was a British officer during the Napoleonic Wars.

His correspondence during the Corunna Campaign were collated and published early in the 20th century.

After service in the Peninsular War he sold his commission in 1811 on his marriage to Albinia Elizabeth Cumberland.

A Cavalry Officer in the Corunna Campaign, 1808-1809; The Journal of Captain Gordon of the 15th Hussars (reprint ed.).

"This is a valuable eye-witness account of an often overlooked campaign by a perceptive and informed professional observer".