| Acronym | Definition |
|---|
| JNI➣Java Native Interface |
| JNI➣Java Native Invocation |
| JNI➣Jacobs Neurological Institute (Buffalo, NY) |
| JNI➣Jack Nadel International (marketing and promotional products agency; various locations) |
| JNI➣Juventud Nazarena Internacional (Spanish: Nazarene Youth International; religious organization) |
| JNI➣Josephine Nefkens Institute (Rotterdam, Netherlands) |
| JNI➣Just Not Interesting |