CIL may refer to:
Computers C Intermediate Language, a simplified subset of the C programming language Common Intermediate Language, a part of the Microsoft .NET runtime Computer and Information Literacy, a study of computer competence among students and teachers worldwide.
Organisations Canadian Industries Limited, a chemical company best known for their explosives manufacturing and paints Centers for Independent Living, an American disabled persons' advocacy group Centre for International Law (CIL), part of the National University of Singapore Chicago, Indianapolis and Louisville Railway, a railway in Indiana, also known as the Monon Railroad Christadelphian Isolation League, a Christadelphian non-profit organisation Coal India Limited, an Indian state-owned coal company Commissioners of Irish Lights, the lighthouse authority for Ireland Crucible Industries LLC, the US steel producer of CPM steels COFCO International Limited, the overseas agribusiness platform for COFCO Group
People Cil, an American singer-songwriter CIL Chen, a Chinese artist and writer
Places Cil, Azerbaijan, a municipality in Lankaran Rayon Cil, a village in Almaș Commune, Arad County, Romania Cil, Armenia, a municipality in Armenia CIL (Casablanca), a quartier of Casablanca, Morocco Council Airport, airport code CIL Ciliwung LRT station, a light rail station in Jakarta, Indonesia
Other Corpus Inscriptionum Latinarum, a collection of ancient Latin inscriptions Customary international law, those aspects of international law that derive from custom Community Infrastructure Levy, a type of planning gain Cash-in-lieu, a financial term used in the settlement of certain exchange traded options