| Abbreviation | Definition |
|---|---|
| CLEAR | Civic Laboratory for Environmental Action Research |
| CLER | Center for Language Education and Research |
| CLEVER | Clinical Laboratory for Evaluation and Validation of Epidemiologic Research |
| CLHR | Center for Lean Healthcare Research |
| CLHR | Centre for Legal History Research |
| CLPNH | Cold Land Processes in the Northern Hemisphere |
| CLPR | Center For Laser And Photonics Research |
| CLPR | Center For Latino Policy Research |
| CLPR | Centre For Land Protection Research |
| CLPR | Centre For Laser Plasma Research |
| CLPR | Centre for Law and Policy Research |
| CLR | Centre for Landscape Research |
| CLRC | Central Laboratory of the Research Councils |
| CLRC | Computer Learning Research Centre |
| CLRD | Center For Leadership Research And Development |
| CLRD | Centre for Leadership in Research Development |
| CLRD | Centre for Liver Research and Diagnostics |
| CLRD | Clinical and Laboratorial Research in Dentistry |
| CLRD | Collaborative Lesson Research and Development |
| CLRF | Camurus Lipid Research Foundation |