| Abbreviation | Definition |
|---|---|
| NGU | Physical Society of Utrecht |
| NGVS | Northeast Georgia Veterans Society |
| NGW | Naturwissenschaftliche Gesellschaft Winterthur |
| NGW | Scientific Society, Winterthur |
| NGWA | National Ground Water Association |
| NGZ | Natural Science Society in Zrich |
| NGZ | Natural Science Society in Zürich |
| NGZ | Naturforschende Gesellschaft in Zrich |
| NGZ | Naturforschende Gesellschaft in Zürich |
| NHCS | Nevis Historical and Conservation Society |
| NHGN | Natural History Society of Nrnberg |
| NHGN | Natural History Society of Nürnberg |
| NHGN | Naturhistorische Gesellschaft Nrnberg |
| NHGN | Naturhistorische Gesellschaft Nürnberg |
| NHGN | Naturhistorische Gesellschaft zu Nrnberg |
| NHGN | Naturhistorische Gesellschaft zu Nürnberg |
| NHHS | New Hampshire Humane Society |
| NHPS | North Hampshire Photographic Society |
| NHS | Nebraska Humane Society |
| NHSN | Natural History Society of Northumbria |