CSSG
| Acronym | Definition |
|---|---|
| CSSG | Combat Service Support Group (USMC) |
| CSSG | Creative Services Support Group (India) |
| CSSG | Communications Software Solutions Group (Tekelec) |
| CSSG | Cultural Studies Study Group (website) |
| CSSG | Complex Systems and Simulations Group (Massey University, New Zealand) |
| CSSG | Competition Strategy Steering Group |
| CSSG | Centrum Szkolenia Strazy Granicznej (Polish: Border Guard Training Center) |
| CSSG | College Supreme Student Government |