NIWG
| Acronym | Definition |
|---|---|
| NIWG | Nursing Informatics Working Group (American Medical Informatics Association) |
| NIWG | National Indigenous Working Group on Native Title (Australia) |
| NIWG | National Institute for the Word of God (est. 1972) |
| NIWG | Networks and Infrastructure Working Group |
| NIWG | National Implementation Working Group (various locations) |
| NIWG | NIMA-IMINT Working Group |