Marcus P. Miller (March 27, 1835 – December 11, 1906) was a career officer in the United States Army. A Union Army veteran of the American Civil War and a U.S. Army veteran of the American Indian Wars, Spanish–American War, Philippine–American War, he served from 1858 to 1899, attained the rank of brigadier general, and was commended for gallantry during several Civil War battles, the Modoc War, Nez Perce War, and the Iloilo campaign of the Philippine–American War.