SIEP
| Acronym | Definition |
|---|---|
| SIEP | Service d'Information sur les Etudes et les Professions (Belgium) |
| SIEP | Shell International Exploration and Production |
| SIEP | Social Investment and Employment Promotion Project (World Bank) |
| SIEP | Serum Immunoelectrophoresis |
| SIEP | Senior Intelligence Executive Professional (US DoD) |
| SIEP | Survey Instrument Exchange Program |
| SIEP | Security Is Everyone's Problem |