| Acronym | Definition |
|---|
| CSER | Corporate Social and Environmental Responsibility |
| CSER | Centre for the Study of Existential Risk (UK) |
| CSER | Centre for Solar Energy Research (UK) |
| CSER | Committee for the Scientific Examination of Religion (Council for Secular Humanism) |
| CSER | Committee For The Scientific Examination Of Religion |
| CSER | Couchsurfer |
| CSER | Consortium for Software Engineering Research |
| CSER | Conference on Systems Engineering Research |
| CSER | Center for Stabilization and Economic Reconstruction (Institute for Defense and Business) |
| CSER | Center for Software Engineering Research |
| CSER | Communications Service Entrance Room |
| CSER | Computer Security Enhancement Review |
| CSER | Critical Safety Evaluation Report |
| CSER | Coarse Synchronization Error Rate |
| CSER | Clubul de Speologie Emil Racovita (Speleological Club Emil Racovita) |
| CSER | Combat Systems Equipment Room |