Castelvetere may refer to a pair of Italian municipalities of Campania:
Castelvetere in Val Fortore, in the Province of Benevento Castelvetere sul Calore, in the Province of Avellino
See also Castelvecchio Subequo, Italian commune in the Abruzzo region, named Castelvetere in the Middle Ages Caulonia, Italian municipality of Calabria, named Castelvetere until 1863