| NFF | Haines Neutral File Format 
| Others |
| NFF | Nantucket Film Festival
| Others |
| NFF | Naruto Final Fight
| Others |
| NFF | National Farmers Federation
| Others |
| NFF | National FFA (Future Farmers of America) Foundation
| Others |
| NFF | National File Format
| Others |
| NFF | National Fingerprint File
| Others |
| NFF | National Fishworkers Forum
| Others |
| NFF | National Flag Football
| Others |
| NFF | National Flag Foundation
| Others |
| NFF | National Floriculture Forum
| Others |
| NFF | National Foliage Foundation
| Others |
| NFF | National Football Foundation
| Others |
| NFF | National Forest Foundation
| Others |
| NFF | National Forum Foundation
| Others |
| NFF | National Neurofibromatosis Foundation
| Others |
| NFF | Naturally Fit Federation
| Others |
| NFF | Nature's First Food
| Others |
| NFF | Near Frontier Fund
| Others |
| NFF | Networking For Future
| Others |
| NFF | Neutral File Format
| Others |
| NFF | Never Financially Flexible
| Others |
| NFF | New Firm Formation
| Others |
| NFF | New Fiscal Framework
| Others |
| NFF | New Future Father
| Others |
| NFF | Newport Folk Festival
| Others |
| NFF | Nigeria Football Federation
| Others |
| NFF | Nigerian Football Federation
| Others |
| NFF | No Family Farms
| Others |
| NFF | No Fault Found
| Others |
| NFF | No Form Feed
| Others |
| NFF | No Frills Fly
| Others |
| NFF | Nonprofit Finance Fund
| Others |
| NFF | Noreen Fraser Foundation
| Others |
| NFF | Normal Flow Filtration
| Others |
| NFF | Normal For Fife
| Others |
| NFF | Northern Football Federation
| Others |
| NFF | Not Funny F***er
| Others |
| NFF | Note For Fools
| Others |
| NFF | Note For the File
| Others |
| NFF | Notes Flat File Format
| Others |
| NFF | Nothing Fancy Farm
| Others |
| NFF | Nuclear Friends Foundation
| Others |
| NFF | Scandinavian Physiological Society
| Others |
| NFF | WorldToolKit Neutral File Format
| Others |