| FNN | F***ed Nation News
| Others |
| FNN | Fake News Network
| Others |
| FNN | Falcon News Network
| Others |
| FNN | Fanavary Novin Niroo
| Others |
| FNN | Fantasy News Network
| Others |
| FNN | Fascist News Network
| Others |
| FNN | Feed and Nutrition Network
| Others |
| FNN | Feed-forward Neural Network
| Others |
| FNN | Finance News Network
| Others |
| FNN | Financial News Network
| Others |
| FNN | Flat Neighborhood Networks
| Others |
| FNN | Florida News Network
| Others |
| FNN | FogBugz News Network
| Others |
| FNN | Forum Netztechnik Netzbetrieb
| Others |
| FNN | Fraud News Network
| Others |
| FNN | Friday Night Nexus
| Others |
| FNN | Frontier News Network
| Others |
| FNN | Frontiers in Nanoscience and Nanotechnology
| Others |
| FNN | Fuji News Network
| Others |
| FNN | Full National Number
| Others |
| FNN | Fully Naked Noobs
| Others |
| FNN | Fuzzy Natural Number
| Others |
| FNN | Fuzzy Neural Network
| Others |