Flix is a town in the comarca of Ribera d'Ebre, Catalonia, Spain. Situated on a promontory by the Ebro river, the town occupied an important strategic position. Situated on the Madrid–Barcelona railway line, it expanded in the early twentieth century with the construction of a hydroelectric power station in 1948 and a large chemical plant, Electroquímica de Flix. One of the main tourist attractions is fishing in the horseshoe-shaped bend in the river.