Case or CASE may refer to:
Other science and technology
Case study, examination of a single instance or event
Case-hardening, a process of hardening the surface of a metal object
Case-shot, a type of anti-personnel canister ammunition similar to a shrapnel shell
Proof by exhaustion, a method of mathematical proof also known as "proof by cases"
Case Middle School, part of Punahou School in Oahu, Hawaii
Case Western Reserve University, an independent research university in Cleveland, Ohio, US
Center for Advanced Studies in Engineering, a graduate engineering program in Islamabad, Pakistan
Council for Advancement and Support of Education, a nonprofit association of educational institutions, US
Center for Architecture, Science and Ecology, a research facility of the Rensselaer Polytechnic Institute, US
Case Corporation, defunct manufacturer of agricultural equipment, tractors and cars
Case Construction Equipment (Case CE), a manufacturer of construction equipment
Case IH, a manufacturer of agricultural equipment
W. R. Case & Sons Cutlery Co., an American manufacturer of knives
Conceptually Accurate Signed English, a form of Manually Coded English
Grammatical case, a type of linguistic inflection
Letter case, in typography, the distinction between majuscule (capital or uppercase) and minuscule (lowercase) letters
Case (policy debate), in debate competition
Business case, capturing the reasoning for initiating a project
Egyptian Exchange, a stock exchange comprising the Cairo and Alexandria stock exchanges
Legal case, a dispute between opposing parties, being resolved by a court proceeding
Case Wikipedia (Text) CC BY-SA