| Acronym | Definition |
|---|
| SSPI➣Security Support Provider Interface (Microsoft) |
| SSPI➣Security Support Provider Interface |
| SSPI➣Security Service Provider Interface |
| SSPI➣Society of Satellite Professionals International |
| SSPI➣Security Service Provider Interface (Microsoft) |
| SSPI➣Steady-State Plasma Insulin |
| SSPI➣Service de Salubrité et Prévention Incendie (French: Department of Safety and Fire Prevention; Switzerland) |
| SSPI➣Signs and Symptoms of Psychotic Illness (rating scale) |
| SSPI➣Salle de Soins Post-Interventionnels (French: Post-Interventional Room Care; recovery room) |
| SSPI➣Soldier Sensor/Platform Interface (ITT) |