| Abbreviation | Definition |
|---|---|
| MPEJ | Mathematical Physics Electronic Journal |
| MPJ | Musician Photo Journal |
| MQR | MAIS Quarterly Report |
| MQR | Mennonite Quarterly Review |
| MSJ | Microsoft Systems Journal |
| MSJ | Microsoft Systems Journal Magazine |
| MSJ | Middle School Journal magazine |
| MSJ | Monroe Street Journal |
| MSJ | Multiple Sclerosis Journal |
| MSJM | Mary Slessor Journal of Medicine |
| MSJM | Mount Sinai Journal of Medicine |
| MSSE | Medicine and Science in Sports and Exercise |
| MST | Measurement Science and Technology |
| MST | Mitteldeutsche STudien |
| MTJ | Massage Therapy Journal |
| MTRJ | Mathematics Teaching Research Journal |
| MUJ | Metropolitan Universities Journal |
| MVJ | Muscle Video Journal |
| MWJ | Macintosh Weekly Journal |
| MWJ | Matriarch's Way Journal |