CFN may refer to:
- Caminhos de ferro Namibe, a railway in Angola
- Canadian Football Network
- Canadian Forces Network, a military radio network supporting Canadian military bases and units outside of Canada.
- Carlton Food Network, a British food channel
- Center for Functional Nanomaterials
- CFN/CNBC or Class CNBC, a business and financial news channel in Italy
- College Football News
- Commercial Fueling Network a fueling station network.
- Corpo de Fuzileiros Navais (disambiguation), Brazilian and Portuguese marines
- CFN, the IATA code for the Donegal Airport