SECN
| Acronym | Definition |
|---|---|
| SECN | Southeast Coast Network (US NPS) |
| SECN | Societe d'Edification de Constructions Nouvelles (French construction news) |
| SECN | Small Enterprise-Campus Network (software) |
| SECN | Spindle and Epithelioid Cell Nevus (dermatology) |
| SECN | Survivable Emergency Conferencing Network |
| SECN | South East Cardiac Network (UK) |