| Acronym | Definition |
|---|
| CNSN➣Canadian National Seismograph Network |
| CNSN➣Centro Nacional de Seguridad Nuclear (Spanish: National Center for Nuclear Safety; Cuba) |
| CNSN➣Certified Nutrition Support Nurse |
| CNSN➣Client Service for NetWare |
| CNSN➣Central Nervous System Neoplasms |
| CNSN➣Czech National Seismological Network |