| Acronym | Definition |
|---|
| PSiP | Power Supply in Package (electronics) |
| PSiP | Program and System Information Protocol |
| PSiP | Private Sector Initiative Program |
| PSiP | Program and System Information Protocol (Digital TV data standard) |
| PSiP | Public Sector Investment Programme (UN) |
| PSiP | Personnel Security Investigation Portal (US DoD) |
| PSiP | Propulsion System Integrity Program (US DoD) |
| PSiP | Police Schools Involvement Program (Australia) |
| PSiP | Profit Sharing Investment Plan |
| PSiP | Policy Server Interchange Protocol |
| PSiP | Pollen Signalling Protein |