| Acronym | Definition |
|---|
| CSSN➣Canadian Safe School Network |
| CSSN➣Curriculum Support Services Network |
| CSSN➣Community College of Southern Nevada |
| CSSN➣Seaman, Commissaryman Striker (Naval Rating) |
| CSSN➣Central Society for Sheltering the Needy (Egypt) |
| CSSN➣Customer Service Support Network |