NSFF
| Acronym | Definition |
|---|---|
| NSFF | Not Safe for Facebook |
| NSFF | Norsk Selskap for Fotografi (Norwegian: Norwegian Society for Photography) |
| NSFF | National School Fitness Foundation |
| NSFF | Not Safe for Family (Internet slang) |
| NSFF | North-South Freight Freeways (Netherlands) |
| NSFF | National Security Framework Forum |
| NSFF | Not Suitable for Family (Internet slang) |