IJN
| 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) |