| Acronym | Definition |
|---|
| NFIS➣National Forest Information System (Canada) |
| NFIS➣NIST (National Institute of Standards and Technology) Fingerprint Image Software |
| NFIS➣National Food Industry Strategy (Australia) |
| NFIS➣Neuro-Fuzzy Inference System |
| NFIS➣National Flock Identification Scheme (est. 2002; sheep identification; Australia) |