NPF
- NPF (firewall)
- Naga People's Front
- National Park Foundation
- National Patriotic Front (Zimbabwe)
- National Policy Forum
- National Press Foundation
- National Pro Fastpitch
- National Progressive Front (Iraq)
- National Progressive Front (Syria)
- National Psoriasis Foundation
- Neopentylene fluorophosphate
- Network Processing Forum
- Neuropsychiatric Forum
- New Popular Front
- Nigeria Police Force
- Nineveh Plain Forces
- North Preston's Finest