| Abbreviation | Definition |
|---|---|
| CLIP | Center for Leadership Information and Professionalism |
| CLM | Concise Learning Method |
| CLMR | Center for Labor Market Research |
| CLMR | Centre for Labour-Management Relations |
| CLR | Center for Landscape Research |
| CLS | Center for Louisiana Studies |
| CLS | Clinical Laboratory Science |
| CLS | Columbia Law School |
| CLS | Concept Learning System |
| CLSI | Community and Labor Studies Institute |
| CLSP | California Laboratory Specialist Program |
| CLSP | Center for Language and Speech Processing |
| CLSU | Central Luzon State University |
| CLT | Communicative Language Teaching |
| CLTS | Centre for Land Tenure Studies |
| CLU | California Lutheran University |
| CLU | Christian Life University |
| CLU | Claremont Lincoln University |
| CLUE | Center for Learning and Undergraduate Enrichment |
| CLUE | Cornell Linux User Education |