Cas may mean:
The caste system in India is the paradigmatic ethnographic example of caste. It has origins in ancient India, and was transformed by various ruling elites in medieval, early-modern, and, modern India, especially the Mughal Empire and the British Raj.
Casablanca (Arabic: الدار البيضاء, ad-Dār al-Bayḍā’; Berber: ⴰⵏⴼⴰ, Anfa; local informal name: Kaẓa) is the largest city in Morocco, located in the central-western part of the country bordering the Atlantic Ocean.
Casablanca is a 1942 American romantic drama film directed by Michael Curtiz and based on Murray Burnett and Joan Alison's unproduced stage play Everybody Comes to Rick's.
Castration (also known as gonadectomy) is any action, surgical, chemical, or otherwise, by which an individual loses use of the testicles.