The Júcar (Spanish: [ˈxukaɾ] ) or Xúquer (Valencian: [ˈʃukeɾ]) is a river in Spain, on the Iberian Peninsula. The river runs for approximately 509 km.
Its source is located at Ojuelos de Valdeminguete, in the municipality of Tragacete, province of Cuenca, on the eastern flank of the Montes Universales in the Sistema Ibérico. Its tributaries include the Cabriel, the Magro, and the Albaida.