| Term | Full Form | Category |
|---|---|---|
| ECNS | EEG and Clinical Neuroscience Society | Others |
| ECNS | Electroencephalography and Clinical Neuroscience Society | Others |
| ECNS | Elizabethtown Community Nursery School | Others |
| ECNS | Emergency Communication Nurse System | Others |
| ECNS | Epiphany Community Nursery School | Others |
| ECNS | Ethereum Classic Name Service | Others |
| ECNS | European Conference on Neutron Scattering | Others |
| ECNS | Executive Council of Nova Scotia | Others |