CEY
| Acronym | Definition |
|---|---|
| CEY | Communities Empowering Youth (various locations) |
| CEY | Constant Exploitation Yield (commercial fishing) |
| CEY | Cornell Entrepreneur of the Year (est. 1984; Cornell University; Ithaca, NY) |
| CEY | Conversion Electron Yield |
| CEY | Cercle d'Escrime de Yerres (French: Yerres Fencing Circle; Yerres, France) |
| CEY | Corvette Early Years (Canada) |
| CEY | Curves of Effective Yield (physical chemistry) |