Brigadier General Diego Archuleta (March 27, 1814 – 1884), was a member of the Mexican Congress. He joined the Mexican Army to fight against the United States in the Mexican American War. Later, he was appointed an Indian (Native Americans) Agent by President Abraham Lincoln, and joined the Union Army (US Army) during the American Civil War. Archuleta became the first Hispanic to reach the military rank of Brigadier General.