| Acronym | Definition |
|---|
| CSSA➣Crop Science Society of America |
| CSSA➣Club Sportif Sedan Ardennes (French sports club) |
| CSSA➣Certified Sonicwall Security Administrator |
| CSSA➣Comprehensive Social Security Assistance |
| CSSA➣Cold Start Spark Advance |
| CSSA➣California State Student Association |
| CSSA➣Cactus and Succulent Society of America |
| CSSA➣Catholic Social Services Australia |
| CSSA➣Computer Society of South Africa |
| CSSA➣Chinese Student and Scholar Association (MIT) |
| CSSA➣Canadian Shooting Sports Association |
| CSSA➣Certified System Security Analyst (India) |
| CSSA➣Colorado State Shooting Association |
| CSSA➣Canadian Sanitation Supply Association |
| CSSA➣Community Social Services Act (Minnesota) |
| CSSA➣Communications Supply Service Association |
| CSSA➣Computer Software and Services Association |
| CSSA➣Computer Science Students Association (University of Ottawa, Canada) |
| CSSA➣Civil Service Sailing Association (UK) |
| CSSA➣Center for Space Science and Astrophysics (Stanford University) |
| CSSA➣Corporation des Sciences de la Sante de l'Atlantique (Atlantic Health Sciences Corporation; Saint John, NB, Canada) |
| CSSA➣Cooperative Station Service Accountability (US NOAA) |
| CSSA➣Combat Service Support Area |
| CSSA➣Connecticut State Society of Anesthesiologists |
| CSSA➣Concrete Society of Southern Africa |
| CSSA➣Coarse Sun Sensor Assembly |
| CSSA➣Centralized Software Support Activity |
| CSSA➣Contaminated Soil Storage Area |
| CSSA➣Chartered Secretaries Southern Africa (Johannesburg, South Africa) |
| CSSA➣Central Supply Support Activity |
| CSSA➣Computing Services and Software Association, Ltd (London, England) |
| CSSA➣Computer Science and Systems Analysis Department (Miami University, Oxford, Ohio) |
| CSSA➣Consolidated Software Support Activity |
| CSSA➣Contact Special Security Administrator |
| CSSA➣Committee on Services to State Associations |
| CSSA➣Seaman Apprentice, Commissaryman Striker (Naval Rating) |
| CSSA➣Consolidated Supply Support Activity |
| CSSA➣Council of School Supervisors and Administrators |
| CSSA➣Cryptologic Shore/Software Support Activity |
| CSSA➣Consolidated SIGINT (Signals Intelligence) Support Activity (US NSA) |
| CSSA➣Construction and Sustainable Services for Afghanistan |