| Acronym | Definition |
|---|
| MPSB➣Merit Systems Protection Board |
| MPSB➣Metropolitan Police Special Branch (UK) |
| MPSB➣Multimedia Prospect Sdn. Bhd. (Malaysia) |
| MPSB➣Mercantile Point Sdn. Bhd. (Kuala Lumpur, Malaysia) |
| MPSB➣Morehouse Parish School Board (Bastrop, LA) |
| MPSB➣Midline Posterior Spinal Block |