Henry Kyd Douglas (1838–1903) was a Confederate staff officer during the American Civil War. He participated in most of the battles of the Second Corps, Army of Northern Virginia; serving on the staffs of Stonewall Jackson and his successors. Severely wounded on the third day of the battle of Gettysburg, he became a prisoner of war for almost ten months. At the end of the war, he commanded a brigade at the last battle of the war. After the war he returned to his civilian occupation as a lawyer, got involved in state politics, later as a Gold Democrats, and became an officer in the Maryland National Guard, eventually holding the appointment as Adjutant General. Today Douglas is foremost known for his wartime memoir, I rode with Stonewall, first published in 1940.