NIIF
| Acronym | Definition |
|---|---|
| NIIF | Normas Internacionales de Información Financiera (Spanish) |
| NIIF | Network Interoperability Interconnection Forum |
| NIIF | Network Interconnection Interoperability Forum (ATIS) |
| NIIF | National Industry Issues Forum (collision repair) |
| NIIF | Network Interworking Industry Forum (Australia) |