Castoria may refer to:
Places and jurisdictions Kastoria, city in West Macedonia, Greece, also a Greek Orthodox Metropolitan see. Known as in Aromanian Kastoria (constituency), electoral district in West Macedonia, Greece Kastoria (regional unit), regional unit in West Macedonia, Greece Castoria (Latin see), city and bishopric in Graecia Secunda A previous name for French Camp, California
Other Fletcher's Castoria, now known as Fletcher's Laxative, an oral syrup containing a stimulant laxative Castoria a genus name that contains a single species, the Serra do Mar grass mouse.
See also Castorina, a surname