| 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 |