| Abbreviation | Definition |
|---|---|
| MJN | Micro Java Network |
| MJP | Modernist Journals Project |
| MJR | Montana Journalism Review |
| MJS | Milwaukee Journal Sentinel |
| MJST | Malawi Journal of Science and Technology |
| MJST | Manipal Journal of Science and Technology |
| MJST | Mindanao Journal of Science and Technology |
| MJST | Mugla Journal of Science and Technology |
| MJZ | Medical Journal of Zambia |
| MLJ | Journal of Military and Veterans' Law (Military Law Journal) |
| MLJ | Machine Learning Journal |
| MLJ | Malayan Law Journal |
| MLJ | Medico Legal Journal |
| MLJ | Modern Language Journal |
| MMJ | Metropolitan Museum Journal |
| MMJ | Mymensingh Medical Journal |
| MMTB | Metallurgical and Materials Transactions B |
| MMTB | Movie Making Throughout the Bay |
| MNJ | Malayan Nature Journal |
| MOJ | Malaysian Orthopaedic Journal |