| Acronym | Definition |
|---|
| CESR | Committee of European Securities Regulators |
| CESR | Conseil Économique et Social Régional (French: Regional Economic and Social Council) |
| CESR | Certificate of Eligibility for Specialist Registration (UK) |
| CESR | Centre d'Etude Spatiale des Rayonnements |
| CESR | Center for Economic and Social Rights |
| CESR | Cornell Electron Storage Ring |
| CESR | Centre d'Études Supérieures de la Renaissance (French: Graduate Center of the Renaissance) |
| CESR | Carrier Ethernet Switch Router |
| CESR | Corporate Environmental and Social Responsibility |
| CESR | Center for Economic Self-Reliance (Brigham Young University; Utah) |
| CESR | Center for the Economic Study of Religion |
| CESR | Center for Earth Systems Research |
| CESR | Consolidated Exercise Support Request |
| CESR | Communications Electronics Schedule Review |
| CESR | Customer Enhanced Service Ring (Sprint) |
| CESR | Computer Equipment or Service Request |
| CESR | Center for Environmental Studies and Research (Germany) |