| PSCI | Packet Switching Capable Interface 
| Others |
| PSCI | Parallel and Scientific Computing Institute
| Others |
| PSCI | Parallel Servo Controller Interface
| Others |
| PSCI | Park Street Collegiate Institute
| Others |
| PSCI | Patient Safety Centers of Inquiry
| Others |
| PSCI | Penn State Cancer Institute
| Others |
| PSCI | Pharmaceutical Supply Chain Initiative
| Others |
| PSCI | Plastic Shipping Container Institute
| Others |
| PSCI | Polymer Solvent Complexes and Intercalates
| Others |
| PSCI | Postal Staff College India
| Others |
| PSCI | Power State Coordination Interface
| Others |
| PSCI | Prairieland Service Coordination Inc
| Others |
| PSCI | Princeton Student Climate Initiative
| Others |
| PSCI | Program for Student Community Involvement
| Others |