Castello Caldoresco (Italian for Caldora Castle) is a Renaissance castle in Vasto, Province of Chieti, Abruzzo, south-eastern Italy.

It was built in the early 15th century by the then-lord of the city, Jacopo Caldora, starting from a pre-existing large tower (which in turn dated to the 14th-15th centuries).

Later it was modified and restored by Innico d'Avalos d'Aragona.

The castle is located on a promontory overlooking the Adriatic Sea coast.

It includes four buildings connected, within a square courtyard inside.