| Acronym | Definition |
|---|
| MPJ➣Movimiento Pro Justicia (Guatemalan political association) |
| MPJ➣Ministria e Punëve Të Jashtme (Albanian: Ministry of Foreign Affairs) |
| MPJ➣Metacarpophalangeal Joint |
| MPJ➣Movement for Peace and Justice (Andhra Pradesh, India) |
| MPJ➣Math Projects Journal |
| MPJ➣Musician Photo Journal (online publication) |
| MPJ➣Man Power Justification |
| MPJ➣Militärpolisjägare (Swedish: Military Police Ranger; Sweden) |