| CSEL | California Society of Entertainment Lawyers 
| Others |
| CSEL | Career Services and Experiential Learning
| Others |
| CSEL | Center for Student Engagement Leadership
| Others |
| CSEL | Center for Student Excellence and Leadership
| Others |
| CSEL | Centre for the Study of Emotion and Law
| Others |
| CSEL | Circuit Switch Select Line
| Others |
| CSEL | Clock Select
| Others |
| CSEL | Cognitive Systems Engineering Laboratory
| Others |
| CSEL | Combat Survival Evader Locator
| Others |
| CSEL | Combat Survivor Evader Locator
| Others |
| CSEL | Combat Survivor/Evader Locator
| Others |
| CSEL | Command Senior Enlisted Leader
| Others |
| CSEL | Command Senior Enlisted Leaders
| Others |
| CSEL | Committee on Sports and Entertaiment Law
| Others |
| CSEL | Committee on Sports and Entertainment Law
| Others |
| CSEL | Computer Science Education Laboratory
| Others |
| CSEL | Computer Science Educational Laboratory
| Others |
| CSEL | Control Systems Engineering Laboratory
| Others |
| CSEL | Corpus Scriptorum Ecclesiasticorum Latinorum
| Others |