Map of the Guadalquivir River basin

Guadalquivir is a river in southern Spain. It crosses the autonomous community of Andalusia. The name derives from the Arab Wadi al-Kabir ("big river"), whereas the Romans called it Betis.

Guadalquivir starts in the Glen of the Sources in the mountains near Cazorla (Jaen province) and ends in Sanlucar de Barrameda (Cadiz province). It goes through the provinces of Jaen, Cordoba, Seville and Cadiz. The river is 657 kilometres (408 mi) long. The main tributaries are the rivers Genil (which flows through Granada), The Minor Guadiana, Guadalbullon, and Guadajoz on the left side, and Guadalmena, Jandula, and Guadiato on the right.