| Acronym | Definition |
|---|
| CCTL➣Coordinator Control Subsystem |
| CCTL➣Common Criteria Testing Laboratory (private laboratory, certified to conduct IT product Security Assessments for Information Assurance) |
| CCTL➣Community College Teaching and Learning (program; University of Illinois) |
| CCTL➣Chennai Container Terminal Ltd. (India) |
| CCTL➣Clear Cell Tumor of the Lung (pathology) |
| CCTL➣Castlemilk Community Transport Limited (est. 1996; UK) |
| CCTL➣Committed Cytotoxic T Cell (internal medicine) |