Sermoneta is a hill town and comune in the province of Latina (Lazio), central Italy.
It is a walled hill town, with a 13th-century Romanesque cathedral called Cathedral of S. Maria Assunta and a massive castle, built by the Caetani family. The Cistercian Valvisciolo Abbey is located nearby. In the 13th-16th centuries, it was home to a flourishing Jewish community.
Sermoneta is the hometown of the humanist Aldo Manuzio and the Baroque painter Antonio Cavallucci.
Scenes of the 2007 film Silk featuring Keira Knightley were filmed in Sermoneta.
Marco Lo Russo, musician, composer