SPSK
| Acronym | Definition |
|---|---|
| SPSK | Samodzielny Publiczny Szpital Kliniczny (Polish: Autonomous Public Clinical Hospital) |
| SPSK | Schenck, Price, Smith & King LLP (est. 1912; New Jersey) |
| SPSK | Symmetric Pre-Shared Key (computer safety) |
| SPSK | Symmetric Phase Shift Keying |