| Abbreviation | Definition |
|---|---|
| NFAP | National Federation of Aboriginal Peoples |
| NFAP | National Foundation for American Policy |
| NFAP | Newham Food Access Partnership |
| NFAR | National Forum Against Racism |
| NFAR | National Foundation for Autism Research |
| NFB | National Federation of the Blind |
| NFB | Never Forget The Blind |
| NFCA | National Family Caregivers Association |
| NFCR | National Foundation for Cancer Research |
| NFCY | National Foundation for Catholic Youth |
| NFED | National Foundation for Ectodermal Dysplasias |
| NFER | National Foundation for Educational Research |
| NFF | National FFA (Future Farmers of America) Foundation |
| NFF | National Flag Foundation |
| NFF | National Forest Foundation |
| NFF | National Forum Foundation |
| NFF | National Neurofibromatosis Foundation |
| NFF | Near Frontier Fund |
| NFFF | National Fallen Firefighters Foundation |
| NFFFM | National Fallen Firefighters Foundation's Memorial |