NJF
| Acronym | Definition |
|---|---|
| NJF | Newport Jazz Festival |
| NJF | New Jersey Future (Trenton, NJ) |
| NJF | Norsk Jernbaneforbund (Norway) |
| NJF | Nederlandse Jurisprudentie Feitenrechtspraak (Dutch: Dutch Civil Court Fact Judiciary; Netherlands) |
| NJF | Nordiske Jordbrugsforskeres Forening (Danish: Nordic Association of Agricultural Researchers) |
| NJF | National Justice Festival (biannual conference; Australia) |