| Acronym | Definition |
|---|
| MSPI | Milk, Soy, Protein Intolerance |
| MSPI | Morgan Stanley Principal Investments |
| MSPI | Mobility Software Products, Inc. (Key West, FL) |
| MSPI | Masyarakat Seni Pertunjukan Indonesia |
| MSPI | Mitigating Systems Performance Index |
| MSPI | Mah Sing Plastics Industries Sdn. Bhd. (est. 1979; Malaysia) |
| MSPI | Ministry of Statistics and Programme Implementation (New Delhi, India) |
| MSPI | Mühlhan Surface Protection International Gmbh (Germany) |
