NTF
- NFT (disambiguation)
- NTFS
- Nachrichtentechnische Fachberichte
- National Society for Road Safety
- National Task Force
- National Transfer Format
- National Transonic Facility
- National Turkey Federation
- Neurotrophic factors
- Nigeria Trust Fund
- No Trouble Found
- Norsk Toppfotball
- Norwegian Tobacco Workers' Union
- Norwegian Transport Workers' Union
- Norwegian Union of Textile Workers
- Number Theory Foundation