| Acronym | Definition |
|---|
| CFNS➣Calgary Field Naturalists' Society (Calgary, Alberta, Canada) |
| CFNS➣Craniofrontonasal Syndrome |
| CFNS➣Centre for New Students (Canada) |
| CFNS➣Corporation for National and Community Service (est. 1993) |
| CFNS➣Centre de Formation Nautique Soustons (French: Soustons Nautical Training Center; Soustons, France) |