| Acronym | Definition |
|---|
| CSSP | Center for the Study of Social Policy |
| CSSP | Credential Security Support Provider |
| CSSP | Court Supervised Settlement Program |
| CSSP | College of Social Sciences and Philosophy (University of the Philippines Diliman) |
| CSSP | Cybersecurity Service Provider (various organizations) |
| CSSP | Council of Scientific Society Presidents |
| CSSP | Certified Sonicwall Security Professional (software) |
| CSSP | Customer Specific Standard Product (mobile technology; Quicklogic) |
| CSSP | Comprehensive School Safety Plan (various locations) |
| CSSP | Committee on Solar and Space Physics |
| CSSP | Canadian Shellfish Sanitation Program |
| CSSP | Corrections System Support Program (US State Department) |
| CSSP | Cascading Style Sheets Positioning (computing) |
| CSSP | Community Safety & Security Programme (Singapore) |
| CSSP | Center for the Study of Scottish Philosophy (Princeton, NJ) |
| CSSP | Christian Schwarz-Schilling Project for Integrative Mediation (Berlin, Germany) |
| CSSP | Continuous Sample Survey of Population (Trinidad & Tobago) |
| CSSP | Cambridge Steiner School Project (UK) |
| CSSP | Committee to Save St. Paul's (New York) |
| CSSP | Chip-Sized SAW (Surface Acoustic Wave) Package |
| CSSP | Collective Security, Safety, and Prosperity (international consortium) |
| CSSP | Combined Services Support Program |
| CSSP | Colorado Society of School Pyschologists |
| CSSP | Combat System Safety Program |
| CSSP | Certified Streaming Service Provider (StreamAds) |
| CSSP | Congress of Spanish-Speaking Peoples (political group) |
| CSSP | Computer Simulation of Social Phenomena |
| CSSP | Congregation of the Holy Ghost Fathers, Spiritans (religious order) |
| CSSP | Certified Short Sale Professional (real estate) |
| CSSP | Cesarean Section Scar Pregnancy |
| CSSP | Certified Solidworks Sales Professional |