| Abbreviation | Definition |
|---|---|
| NGBCT | National Guard Brigade Combat Team |
| NGGO | Non-Gazetted Government Officer |
| NGO | Non-Government Organization |
| NGRC | National Grading Rule Committee |
| NH | New Haven |
| NHAP | Nebraska Homeless Assistance Program |
| NHAP | Nevada Health Access Project |
| NHB | North Huntington Beach |
| NHDES | New Hampshire Department of Environmental Services |
| NHDOE | New Hampshire Department of Education |
| NHOC | New Hampshire Outdoor Council |
| NI | North Island |
| NIO | Northern Ireland Office |
| NISRA | Northern Ireland Statistics and Research Agency |
| NJACTT | New Jersey Assessment of Cleaning Techniques Trial |
| NJBA | New Jersey Building Authority |
| NJCCC | New Jersey Casino Control Commission |
| NJCM | New Jersey Conference Of Mayors |
| NJCS | New Jersey's Child Support |
| NJMR | New Jersey Maritime Resources |