| NFSA | National Film and Sound Archive
| Others |
| NFSA | National Finance Students Association
| Others |
| NFSA | National Fire Sprinkler Association
| Others |
| NFSA | National Flying Squirrel Association
| Others |
| NFSA | National Food Safety Auditor
| Others |
| NFSA | National Food Safety Authority
| Others |
| NFSA | National Food Security Act 
| Legal, Policy |
| NFSA | National Forensic Science Academy
| Others |
| NFSA | National Fraud Strategic Authority
| Others |
| NFSA | Nissan Financial Services Australia
| Others |
| NFSA | Nissan France Sa
| Others |
| NFSA | Nordic Free Software Award
| Others |
| NFSA | North Florida Springs Alliance
| Others |
| NFSA | Nutrition and Food Science Association
| Others |