| Acronym | Definition |
|---|
| SSIP | Safety Schemes in Procurement (UK) |
| SSIP | Savings and Stock Investment Plan |
| SSIP | Sensor Site Implementation Plan |
| SSIP | Sensor System Improvement Program |
| SSIP | Ship Support Improvement Program/Project |
| SSIP | Shuttle Student Involvement Program (NASA) |
| SSIP | Site Specific Installation Permit |
| SSIP | Social Sector Investment Programme (Trinidad & Tobago) |
| SSIP | Submarine Sonar Improvement Project |
| SSIP | Superior Supplier Incentive Program (US Navy) |
| SSIP | Supplemental Structural Inspection Program |
| SSIP | System Safety Implementation Plan |