| Acronym | Definition |
|---|
| NAJ➣Nurses Association of Jamaica |
| NAJ➣National All -Jersey, Inc. (Jersey cow; Reynoldsburg, OH) |
| NAJ➣Network Attached Jukebox (system) |
| NAJ➣Nepalese Association in Japan (est. 1988) |
| NAJ➣Nederland Acid Jazz (band) |
| NAJ➣National Association of Jewelers |