| CTTL | Caribbean Tech TrendZ Limited 
| Others |
| CTTL | Caribbean TECH TrendZ Ltd
| Others |
| CTTL | Cellular Therapeutics and Transplantation Laboratory
| Others |
| CTTL | Center for Technology in Teaching and Learning
| Others |
| CTTL | Center for Transformational Teaching and Learning
| Others |
| CTTL | Center for Transformative Teaching and Learning
| Others |
| CTTL | Center for Transformative Teaching Learning
| Others |
| CTTL | China Telecommunication Technology Labs
| Others |
| CTTL | Clandestine Tagging Tracking and Locating
| Others |
| CTTL | Commission on Technology in Teaching and Learning
| Others |
| CTTL | Common Text Transformation Library
| Others |
| CTTL | Course Training Task List
| Others |
| CTTL | Course Training Tasks List
| Others |