Henry Brevard Davidson (January 28, 1831 – March 4, 1899) was a graduate of the United States Military Academy and an officer in the United States Army in the West before the American Civil War. At the outbreak of the war, he resigned his commission and served in various staff positions in the Confederate States Army. On August 18, 1863, he was promoted to brigadier general and first commanded brigades of cavalry in the Western Theater, particularly in Tennessee and Georgia. In 1864, he was transferred to Virginia and served in the Valley Campaigns of 1864. At the end of the war, he served under General Joseph E. Johnston in the Carolina Campaign. After the war, he became a civil engineer in California and in 1887 was deputy secretary of state in California. Later in life, he was an agent