Cox is a municipality in Spain, located in the comarca of Vega Baja del Segura within the Valencian Community. It lies in the southern part of the region, in the province of Alicante.
The town forms part of the Vega Baja del Segura, a comarca whose name refers to the low-lying, fertile plain of the Segura river in southern Valencia. Cox is one of the municipalities that make up this comarca.