MPJ
| 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) |