| Acronym | Definition |
|---|
| CSTL➣Chemical Science and Technology Laboratory |
| CSTL➣Carbon Steel |
| CSTL➣Center for Scholarship in Teaching and Learning (School of University Studies; est. 1985; Cape Girardeau, MO) |
| CSTL➣Centre for Studies in Teacher Librarianship (Australia) |
| CSTL➣Cooling Seasonal Total Load (air conditioning) |
| CSTL➣Cryptographic and Security Testing Laboratory (cybersecurity) |
| CSTL➣Clinical Study Team Leader |
| CSTL➣Client Services Team Leader (customer service) |