| Rank | Abbreviation | Meaning |
|---|
| ***** | CSTT | Cost/Schedule Trade-Off Tool
| |
| ***** | CSTT | Confédération Syndicale des Travailleurs du Togo
| |
| **** | CSTT | Cold Stimulation Time Test
| |
| **** | CSTT | Centre for Social Theory and Technology
| |
| **** | CSTT | Centre for Sustainable Tourism and Transport
| |
| **** | CSTT | Combat System Training Team
| |
| **** | CSTT | Chinese Society for Trenchless Technology
| |
| **** | CSTT | Classwide Student Tutoring Teams
| |
| **** | CSTT | China Society for Trenchless Technology
| |
| **** | CSTT | Civil Support Team Trainer
| |
| *** | CSTT | Center for Sustainable Tourism and Transport
| |
| *** | CSTT | Centre for Surface Transportation Technology
| |
| *** | CSTT | Civil Support Team Training
| |
| *** | CSTT | Civil Society Thematic Team
| |
| ** | CSTT | Chartered Surveyors Training Trust
| |
| ** | CSTT | Cross Sectoral Task Team
| |
| ** | CSTT | Centri Servizi Turistici Territoriali
| |
| * | CSTT | Comprehensive Studies Task Team
| |
| * | CSTT | Concrete Strength Testing Technician
| |
| * | CSTT | Center for Surface Transportation Technology
| |
| * | CSTT | Certified Supervising Tutor Trainer
| |
| * | CSTT | Complete School of Truck Transportation
| |
| * | CSTT | Current Signal Transduction Therapy
| |
| * | CSTT | Commission of Scientific Technical Terminology
| |
| * | CSTT | Codes and Standards Technical Team
| |