| Acronym | Definition |
|---|
| GSSP | Ghana Strategy Support Program |
| GSSP | Global Boundary Stratotype Sections and Points |
| GSSP | Generally-Accepted System Security Principles (NSSOG) |
| GSSP | Golden State Star Party |
| GSSP | Graduate Student Support Plan (various universities) |
| GSSP | Graphical State Space Programming (robot programming) |
| GSSP | Gifted Student Services Plan (Kentucky Department of Education) |
| GSSP | Groupe Spécial de la Sécurité Présidentielle (French: Special Presidential Security Group; Democratic Republic of Congo) |
| GSSP | Global System Service Provider |
| GSSP | Gobal Standard Section and Point |
| GSSP | Gorilla Species Survival Plan |