| CSSR | Call Setup Success Rate 
| Others |
| CSSR | Call Setup Success Ratio
| Others |
| CSSR | Canadian Society for the Study of Religion
| Others |
| CSSR | Canadian Society for the Study of Rhetoric
| Others |
| CSSR | Canadian Soviet Socialist Republic
| Others |
| CSSR | Career Success Standards Rating system
| Others |
| CSSR | Catholic Social Science Review
| Others |
| CSSR | Center for Secondary School Redesign
| Others |
| CSSR | Center for Social Science Research
| Others |
| CSSR | Center for Social Services Research
| Others |
| CSSR | Center for Software Systems Research
| Others |
| CSSR | Center for the Study of Science and Religion
| Others |
| CSSR | Central Server for Statistical Reporting
| Others |
| CSSR | Centre for Social Science Research
| Others |
| CSSR | Centre for Social Studies and Reforms
| Others |
| CSSR | Certified Social Sourcing Recruiter
| Others |
| CSSR | Climate Science Special Report
| Others |
| CSSR | Cold Start Spark Retard
| Others |
| CSSR | Collapsed Structure Search and Rescue
| Others |
| CSSR | Collective for Social Science Research
| Others |
| CSSR | Comet Surface Sample Return
| Others |
| CSSR | Commissaryman Seaman Recruit
| Others |
| CSSR | Communications System Segment Replacement
| Others |
| CSSR | Communications Systems Segment Replacement
| Others |
| CSSR | Community Standards and Student Responsibility
| Others |
| CSSR | Comprehensive Services and School Readiness
| Others |
| CSSR | Congregatio Sanctissimi Redemptoris
| Others |
| CSSR | Conservaive site specific recombination
| Others |
| CSSR | Conservative site specific recombination
| Others |
| CSSR | Consolidated Stock Status Report
| Others |
| CSSR | Context Structure Sound Reference
| Others |
| CSSR | Cost Schedule Status Report
| Others |
| CSSR | Council of Societies for the Study of Religion
| Others |
| CSSR | Council with Social Service Responsibilities
| Others |
| CSSR | Councils with Social Services Responsibility
| Others |
| CSSR | Creative and Scholarly Saluki Rookies
| Others |
| CSSR | Customer Sales Service Representative
| Others |
| CSSR | Customer Service and Sales Representative
| Others |
| CSSR | Czech and Slovakia Socialist Republic
| Others |