| Abbreviation | Definition |
|---|---|
| NATF | National Audio Theatre Festivals |
| NBAF | National Black Arts Festival |
| NBBF | National Black Book Festival |
| NBFF | Newport Beach Film Festival |
| NBTF | National Black Theatre Festival |
| NCF | National Cannabis Festival |
| NCFF | Nevada City Film Festival |
| NDCF | New Directions Cello Festival |
| NDLF | Nusa Dua Light Festival |
| NDMF | Neon Desert Music Festival |
| NDSF | Notre Dame Shakespeare Festival |
| NEFF | New England Fiber Festival |
| NEFFA | New England Folk Festival Association |
| NFAF | National Fine Arts Festival |
| NFAF | National Finnish American Festival |
| NFF | Nantucket Film Festival |
| NFF | Newport Folk Festival |
| NFOB | National Festival of Breads |
| NIFF | Naoussa International Film Festival |
| NIFF | Naperville Independent Film Festival |