4th Corps () or Cửu Long Corps (, literally: Corps of Cửu Long) is one of the four regular army corps of the Vietnam People's Army. First organized in 1974 during the Vietnam War, 4th Corps had a major role in the Ho Chi Minh Campaign and the Cambodian–Vietnamese War. Today the corps is stationed in Dĩ An, Bình Dương. * Commander: Maj. Gen. Nguyễn Hoàng * Political Commissar: Maj. Gen. Nguyễn Trọng Nghĩa