CTSG
| Acronym | Definition |
|---|---|
| CTSG | Carol/Trevelyan Strategy Group |
| CTSG | Creative Technology Services Group (Fredericksburg, VA) |
| CTSG | Cryptographic Technology Standards and Guidance (NIST) |
| CTSG | Chinatown Singapore (gaming clan) |
| CTSG | Channel Tunnel Study Group (civil engineering) |
| CTSG | Citibank Treasury Services Group |
| CTSG | Canadian Transplant Study Group |