Guadalentín is a river in Spain. It is a tributary of the Segura.

The Guadalentín River flows in the southeastern region of Spain. The Guadalentín River Basin is one of the largest in Spain. The Guadalentín Basin is a flat valley, and comprises the Alto Guadalentín aquifer. The valley is contiguous in the northeast and on the south-east with fault systems.

• List of rivers of Spain

37°59′30″N 1°04′22″W / 37.9917°N 1.0728°W / 37.9917; -1.0728