| NIFC | Narodowy Instytut Fryderyka Chopina
| Others |
| NIFC | National Interagency Fire Cache
| Others |
| NIFC | National Interagency Fire Center
| Others |
| NIFC | National Inventor Fraud Center
| Others |
| NIFC | National Irish Freedom Committee
| Others |
| NIFC | NATO Intelligence Fusion Centre
| Others |
| NIFC | New Israel Fund Canada
| Others |
| NIFC | New Israel Fund of Canada
| Others |
| NIFC | Northern Illinois Football Conference
| Others |
| NIFC | Northwest Infrastructure Financing Corporation
| Others |
| NIFC | Not Intended For Circulation
| Others |
| NIFC | Not Issued For Circulation
| Others |