Villa Regina Apostolorum, better known as the Villa delle Cento Finestre (Villa of One Hundred Windows), is a monumental Baroque villa overlooking Casale Monferrato in the Piedmont region of Italy. Built in the second half of the 18th century for Marquis Vincenzo Stanislao Ricci of Cereseto, the residence later passed through several noble families and became one of the most prestigious villas in the area.

The four-storey mansion, believed to have been designed by architect Francesco Ottavio Magnocavallo, featured elegant stucco decorations, grand halls and long rows of windows that inspired its famous nickname. In the 1970s the villa was converted into a religious care home for priests under the name Regina Apostolorum.

After the community left in 1994, the building gradually fell into decline. Despite occasional cultural events and restoration proposals, the villa remains largely abandoned today and is considered one of the most iconic historic landmarks of Monferrato.