Castrojeriz or Castrogeriz is a locality and municipality located in the province of Burgos, in the autonomous community of Castilla y León, the comarca of Odra-Pisuerga, the judicial district of Burgos, head of the town council of the same name and former head of the Castrojeriz judicial district.
It is a popular stop along the French Way of the Camino de Santiago or The Way of Saint James, which crosses the city longitudinally for more than 1,500 meters.