| Abbreviation | Definition |
|---|---|
| NWT | Northwest Texas |
| NWTC | Nine-mile Wildlands Training Center |
| NWTP | North Wastewater Treatment Plant |
| NWTP | Northwest Wastewater Treatment Plant |
| NWV | North Willamette Valley |
| NWY | NOrthern WYoming |
| NYC | New York City |
| NYC | Northern Yaron County |
| NYCC | North Yorkshire County Council |
| NYCEDC | New York City Economic Development Corporation |
| NYCERS | New York City Employees Retirement System |
| NYCHVS | New York City Housing and Vacancy Survey |
| NYCIRB | New York Compensation Insurance Rating Board |
| NYCRR | New York Codes Rules And Regulations |
| NYCRR | New York Codes, Rules, and Regulations |
| NYCTA | New York City Transit Authority |
| NYCTAT | New York City Tax Appeals Tribunal |
| NYDEC | New York Department of Environmental Conservation |
| NYDFS | New York Department of Financial Services |
| NYers | New Yorkers |