| NYF | National Youth Federation
| Others |
| NYF | National Youth Forum
| Others |
| NYF | National Youth Fund
| Others |
| NYF | Nepal Youth Foundation
| Others |
| NYF | New Year Festival
| Others |
| NYF | New Year's Festival
| Others |
| NYF | New York Fasteners
| Others |
| NYF | New York Festivals
| Others |
| NYF | New York Foundation
| Others |
| NYF | New York Fries
| Others |
| NYF | New Young Fresh
| Others |
| NYF | Niobium Yttrium and Fluorine
| Others |
| NYF | Noorbakhshia Youth Federation
| Others |
| NYF | Norsk Yrkeshygienisk Forening
| Others |
| NYF | Norwegian Occupational Hygiene Association
| Others |
| NYF | Not Yet Fallen
| Others |