| Acronym | Definition |
|---|
| CSST | Corrugated Stainless Steel Tubing |
| CSST | China Security & Surveillance Technology, Inc. |
| CSST | Commission de la Santé et de la Sécurité du Travail du Québec (French: Occupational Health and Safety Commission, Quebec, Canada) |
| CSST | Certificate of Completion of Specialist Training (UK) |
| CSST | Certified Senior Strength Trainer |
| CSST | Canine Specialized Search Team (Santa Clara County, California) |
| CSST | Certified Site Surveillance Technician |
| CSST | Colorado Springs Swim Team (Colorado) |
| CSST | Client-Server Software Testing |
| CSST | Council for Study of the Shroud of Turin |
| CSST | Construction Site Safety Technician |
| CSST | Coping and Social Skills Training (psychiatry) |
| CSST | Combat Service Support Team (US Navy) |
| CSST | Coordination Committee for Science and Technology (Australia) |
| CSST | Caribbean Council for Science and Technology |