| Acronym | Definition |
|---|
| CFN | Commercial Fueling Network |
| CFN | Center for Functional Nanomaterials |
| CFN | Companhia Ferroviaria do Nordeste (Brazil) |
| CFN | Craftsman (military rank) |
| CFN | Conselho Federal de Nutricionistas (Brazil) |
| CFN | Centro de Fusão Nuclear (Portugese) |
| CFN | Ciao for Now |
| CFN | Canadian Forces Network |
| CFN | Certified Forensic Nurse |
| CFN | Connection Frame Number (3GPP) |
| CFN | Certified Flight Nurse |
| CFN | Call Forwarding Number (telecommunication networks) |
| CFN | Centre de Formation Nautique (French: Nautical Training Center; Switzerland) |
| CFn | Composeable FORCEnet |
| CFN | Custom Fiber Network (Herndon, VA) |
| CFN | Cercle Ferroviaire de Nancy (French: Nancy Railway Circle; Nancy, France) |
| CFN | Cercle Ferroviaire Nogentais (French railroad enthusiast club) |
| CFN | Committee for Nationality (Vietnam) |
| CFN | Constructions et Fermetures du Nord (French plastics manufacturer) |
| CFN | Canada First Nations |
| CFN | Compagnie Française de Négoce (French: French Trading Company) |
| CFN | Chaud Froid Normandie (French heating and air conditioning company) |
| CFN | Caldwell First Nation (Canada) |
| CFN | Complexes Fongiques Nécrotrophes (French: Fungal Necrotroph Complexes) |
| CFN | Customer Fulfillment Network |
| CFN | Compositions Florales de Normandie (French: Normandy Flower Arrangements; Normandy, France) |
| CFN | Caring Family Network (est. 1992) |
| CFN | Center for Neighborhoods (Louisville, KY) |
| CFN | Center for Nursing (various locations) |