The Clitunno, in Antiquity the Clitumnus, is a river in Umbria, Italy. The name is of uncertain origin, but it was also borne by the river god. The Clitunno rises at from a spring within a dozen metres of the ancient Via Flaminia near the town of Campello sul Clitunno between Spoleto and Trevi: the spring was celebrated as a great beauty spot by the Romans but also by Byron and Giosuè Carducci; in the 19th century it was planted with willows, and jealously monitored for pollution, it is open today as a paying tourist attraction.