MJRA
| Acronym | Definition |
|---|---|
| MJRA | Michael Jantzi Research Associates, Inc. |
| MJRA | Midwest Junior Rowing Association |
| MJRA | Mid Jersey Respiratory Associates |
| MJRA | Marana Junior Rodeo Association (Arizona) |
| MJRA | Monarticular Juvenile Rheumatoid Arthritis |
| MJRA | Modified Joint Regression Analysis (agricultural science) |