| Acronym | Definition |
|---|
| SMPI | Sequential Multi Port Injection |
| SMPI | San Miguel Properties, Inc. (Philippines) |
| SMPI | Statutory Money Purchase Illustration |
| SMPI | Sodium Meta per Iodate |
| SMPI | Smart Machine Platform Initiative (Coalition for Manufacturing Technology Infrastructure) |
| SMPI | SMS (Short Message Service) Message Passing Interface (software) |
| SMPI | Sales & Marketing Partners Italy |
| SMPI | Sofra Métaux Précieux Industries (French: Sofra Precious Metals Industries) |
| SMPI | Sequential Multiport Injection |
| SMPI | System Manager Programmer Interface |
| SMPI | Smoke & Mirrors: Paranormal Investigators |
| SMPI | Soluble Milk Protein Isolates (manufacturer; France) |
| SMPI | Sensitive Minds Paranormal Investigations |
| SMPI | Service Management Proficiency Index (est. 2009) |
| SMPI | Self-Monitored Pain Intensity |
| SMPI | Slowly Migrating Proteinase Inhibitors |