| CCLS | California Certified Legal Secretary 
| Others |
| CCLS | California Childhood Leukemia Study
| Others |
| CCLS | Canadian Council of Land Surveyors
| Others |
| CCLS | Carver County Library System
| Others |
| CCLS | Center for Computational Learning Systems
| Others |
| CCLS | Center for Computing for Life Sciences
| Others |
| CCLS | Center of Civil Law Studies
| Others |
| CCLS | Central California Legal Services
| Others |
| CCLS | Centre for Commercial Law Studies
| Others |
| CCLS | Centre for Community and Labour Studies
| Others |
| CCLS | Certified Child Life Specialist
| Others |
| CCLS | Chattooga County Library System
| Others |
| CCLS | Chautauqua Cattaraugus Library System
| Others |
| CCLS | Chester County Library System
| Others |
| CCLS | Christ Community Lutheran School
| Others |
| CCLS | Clayton County Library System
| Others |
| CCLS | Co Curricular Learning And Service
| Others |
| CCLS | Coca Cola Light Sango
| Others |
| CCLS | Columbus Community Legal Services
| Others |
| CCLS | Common Core Learning Standards
| Others |
| CCLS | Community Capacity Land Stewardship
| Others |
| CCLS | Consumer Credit Legal Service
| Others |
| CCLS | Cooper Center Longitudinal Study
| Others |
| CCLS | Creative Community Living Services
| Others |
| CCLS | Cultural Center for Language Studies
| Others |