| Acronym | Definition |
|---|
| CEMA | Cyber Electro Magnetic Activities |
| CEMA | Chef d'Etat-Major des Armees |
| CEMA | Conveyor Equipment Manufacturers Association |
| CEMA | Consumer Electronics Manufacturers Association |
| CEMA | Cumulative Environmental Management Association (Canada) |
| CEMA | Council for the Encouragement of Music and the Arts (now Arts Council of Northern Ireland) |
| CEMA | Canadian Egg Marketing Agency |
| CEMA | Committee on Ethnic Minority Affairs |
| CEMA | Computer Event Marketing Association |
| CEMA | Chefe do Estado-Maior da Armada (Portugal) |
| CEMA | Columbia Emergency Management Agency (Columbia, NH) |
| CEMA | Central Europe & Middle East & Africa |
| CEMA | Certified Expert Vulnerability Professional (Lunarline School of Cybersecurity; various locations) |
| CEMA | Canadian Electrical Manufacturers Association |
| CEMA | Centre Européen des Métiers d'Art (French: European Center of Craftsmanship) |
| CEMA | Colorado Emergency Managers Association |
| CEMA | Converted Energy per Unit Mass (physics) |
| CEMA | Consolidated Extension Modification Agreement |
| CEMA | Conservatoire Européen du Machinisme Agricole (European Committee of Agricultural Machinery Manufacturers Associations) |
| CEMA | Council for Economic Mutual Economic Assistance |
| CEMA | Charlestown Emergency Management Agency (Charlestown, Rhode Island) |