| Acronym | Definition |
|---|
| MMJ➣Medical Marijuana |
| MMJ➣Multimedia Journalist |
| MMJ➣My Morning Jacket (band) |
| MMJ➣Matsumoto Airport (Japan) |
| MMJ➣Malta Medical Journal |
| MMJ➣Musicmatch Jukebox |
| MMJ➣Malawi Medical Journal (quarterly publication) |
| MMJ➣Mainichi Medical Journal (Japan) |
| MMJ➣Mymensingh Medical Journal (Bangladesh) |
| MMJ➣Moscow Mathematical Journal (Independent University of Moscow; Russia) |
| MMJ➣Modified Modular Jack |
| MMJ➣Mutuelle du Ministère de la Justice (French: Mutual Ministry of Justice) |
| MMJ➣Michigan Mathematical Journal (Department of Mathematics; University of Michigan) |
| MMJ➣Mitchell, Maxwell & Jackson, Inc. (real estate appraisals; New York, NY) |