| Abbreviation | Definition |
|---|---|
| NIFF | Naples International Film Festival |
| NIFF | Nashik International Film Festival |
| NIFF | Nepal International Film Festival |
| NIFF | Newark International Film Festival |
| NIFF | Niagara Integrated Film Festival |
| NIFF | Niigata International Film Festival |
| NIFF | Noida International Film Festival |
| NIFF | Noosa International Film Festival |
| NIFF | Nordic International Film Festival |
| NIFF | Northampton Independent Film Festival |
| NILF | Nature Island Literary Festival |
| NJSF | New Jersey Shakespeare Festival |
| NLAF | Niagara Literary Arts Festival |
| NLFF | Nordic Labour Film Festival |
| NLFF | Nordic Lights Film Festival |
| NLWF | Noosa Long Weekend Festival |
| NMAF | Norfolk Musical Arts Festival |
| NMF | Nelsonville Music Festival |
| NNF | Near Nazareth Festival |
| NOAF | Neuborn Open Air Festival |