NIF
- FF Giza
- Gamebryo
- Kemalpaşa
- Mount Nif
- NSW TrainLink D set
- National Ignition Facility
- National Immigration Forum
- National Islamic Front
- National Issues Forums
- Nationalist and Integrationist Front
- Natural Language Programming Interchange Format
- Negative inspiratory force
- Neuroscience Information Framework
- New Israel Fund
- Nif gene
- Nif regulon
- Nifty Airport
- Norwegian Olympic and Paralympic Committee and Confederation of Sports
- VAT identification number