Puente de la Unidad or Viaducto de la Unidad is a cantilever spar cable-stayed bridge designed by Óscar Bulnes that crosses the Santa Catarina River and connects the cities of Monterrey and San Pedro Garza García in the Mexican state of Nuevo León. It is part of a circuit called "Circuito La Unidad", which would consist of the interconnection of a series of Avenues.