CTSN
| Acronym | Definition |
|---|---|
| CTSN | Crimson Tide Sports Network |
| CTSN | Canadian Traumatic Stress Network (British Columbia, Canada) |
| CTSN | Central Térmica San Nicolás (Spanish: San Nicolas Power; San Nicolás, Argentina ) |
| CTSN | Coyote Trails School of Nature (Ashland, OR) |
| CTSN | Seaman, Cryptologic Technician Striker (Naval Rating) |