Wikipedia
NNF
NNF may mean:Net financial flows: financial assets- financial liabilities
- Name Not Final, an abbreviation in creative works placed after a Working title
Namibia National Front
- Namibia Nature Foundation
- Nærings- og Nydelsesmiddelarbejder Forbundet, the Danish Food and Allied Workers' Union
- Negation Normal Form (in mathematics, computer science, logic)
- Never Not Funny, Jimmy Pardo's award winning weekly podcast