Found 5 full forms for FFNI
| Term | Full Form | Category |
|---|---|---|
| FFNI | Finite Frequency Negative Imaginary 
| Others |
| FFNI | Five Factor Narcissism Inventory
| Others |
| FFNI | Freiwillige Feuerwehr Neu Isenburg
| Others |
| FFNI | Freiwillige Feuerwehr Neustift Innermanzing
| Others |
| FFNI | Fund for needy Immigrants
| Others |