The Azibo River () is a Portuguese river in the Douro River basin. It has its source in the Nogueira mountains, near the place of Rebordainhos, Bragança Municipality, in the northeast of Portugal. Along its of length, it crosses the Macedo de Cavaleiros Municipality, where in 1982 an earthfill dam was built near Santa Combinha place (Azibo Reservoir). The Azibo river has its mouth near the place of Lagoa (Macedo de Cavaleiros Municipality), on the of Sabor River, which is a tributary of Douro River.