NF
- nF – (s) Nanofarad
- NF – (s) Norfolk Island (ISO 3166 digram)
- NFA – (i) No-Fire Area
- NFC – (i) National Football Conference
- NFER – (i) National Foundation for Educational Research
- NFG – (i) No Fucking Good
- NFHS – (i) National Federation of High Schools, now National Federation of State High School Associations
- NFI – (i) Not F****** Interested
- NFK – (s) Norfolk Island (ISO 3166 trigram)
- NFL – (i) National Football League – No-Fire Line
- Nfld – (p) Newfoundland
- NFPA – (a) National Fluid Power Association (United States)
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