Casin

Casin may refer to:


 * Cașin, a commune and village in Bacău County, Romania
 * Casín cheese, a protected designation for cheese products from Spain that are produced exclusively from three cattle breeds
 * Casín beef, a protected designation for meat products from Spain that are produced exclusively from the Casina a.k.a. Asturian Mountain cattle breed
 * Casin: A boy's name; also related as Casin the handsome