Castorano is a comune, or municipality, situated in the Province of Ascoli Piceno within the Marche region of central Italy. It is located approximately 80 kilometres south of Ancona and about 13 kilometres northeast of the provincial capital, Ascoli Piceno.
The town serves as a local administrative center within its province. Its geographical position places it in the heart of the Marche region, characterized by its proximity to major regional hubs like Ascoli Piceno.