| Acronym | Definition |
|---|
| IJN➣Imperial Japanese Navy (until 1945) |
| IJN➣Institut Jantung Negara (Indonesian: National Heart Institute; Malaysia) |
| IJN➣In Jesus Name |
| IJN➣International Journal of Nanoscience |
| IJN➣International Justice Network (New York, NY) |
| IJN➣Indian Journal of Nephrology |
| IJN➣Iran Journal of Nursing (Iran University of Medical Sciences) |