Valderice (Sicilian: Valdèrici) is a town and comune in North-Western Sicily, Italy, administratively part of the province of Trapani.

The history of Valderice is connected to that of Monte Erice, since the population moved from there to the fertile valleys of the mountain, establishing settlements like S. Marco, Ragosia, Misericordia, S. Andrea, Bonagia, Casalbianco, Crocci, Chiesanuova, Lenzi, Fico e Crocevie.

With the end of Fascism in 1943, the socialist Gaspare di Vita was elected mayor at Erice He did not resolve the controversy then raging about the position of Erice as the chief settlement of the area.

However, after the 1946 elections, a left wing administration was formed and the question of Erice's position was reopened and the various frazioni renewed their calls for autonomy.

San Vito Lo Capo, Buseto Palizzolo, and Custonaci were the first to receive administrative autonomy.