MPSB
| 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 |