| CSSA | Crop Science Society of America | 美国农作物学会 |
| CSSA | Chinese Students and Scholars Association | 中国学生学者联谊会 |
| CSSA | Catholic Secondary Schools Association | 天主教中学协会 |
| CSSA | Chinese Student and Scholar Association (MIT) | 中国学生学者协会(MIT) |
| CSSA | Cognitive Science Student Association | 认知科学学生协会 |
| CSSA | Connecticut State Society of Anesthesiologists | 康涅狄格州麻醉医师协会 |
| CSSA | Concrete Society of Southern Africa | 南非混凝土协会 |
| CSSA | Communications Supply Service Association | 通信供应服务协会 |
| CSSA | California State Student Association | 加利福尼亚州学生协会 |
| CSSA | Computer Software and Services Association | 计算机软件和服务协会 |
| CSSA | Computer Science Students Association | 计算机科学学生协会 |
| CSSA | Cactus and Succulent Society of America | 美国仙人掌和多汁协会 |
| CSSA | Computing Services and Software Association, Ltd (London, England) | 计算服务和软件协会有限公司(英国伦敦) |
| CSSA | Civil Service Sailing Association (UK) | 英国公务员帆船协会 |
| CSSA | Chinese Students Scholars Association | 中国学生学者协会 |
| CSSA | Computer Science Students Association (University of Ottawa, Canada) | 计算机科学学生协会(加拿大渥太华大学) |
| CSSA | Canadian Shooting Sports Association | 加拿大射击运动协会 |
| CSSA | Committee on Services to State Associations | 州协会服务委员会 |
| CSSA | Chinese Student And Scholar Association | 中国学生学者协会 |
| CSSA | Canadian Sanitation Supply Association | 加拿大卫生供应协会 |
| CSSA | Colorado State Shooting Association | 科罗拉多州射击协会 |
| CSSA | Seaman Apprentice, Commissaryman Striker (Naval Rating) | 海员学徒、政委罢工(海军等级) |
| CSSA | Council of School Supervisors and Administrators | 学校主管和行政人员理事会 |
| CSSA | Cable Sat Systems, Inc. | Cable Sat Systems公司。 |
| CSSA | Center for Space Science and Astrophysics (Stanford University) | 空间科学和天体物理学中心(斯坦福大学) |
| CSSA | Consolidated Software Support Activity | 整合软件支持活动 |
| CSSA | Coarse Sun Sensor Assembly | 粗日照传感器组件 |
| CSSA | Computer Science and Systems Analysis Department (Miami University, Oxford, Ohio) | 计算机科学与系统分析系(迈阿密大学,牛津,俄亥俄州) |
| CSSA | Cryptologic Shore/Software Support Activity | 海岸/软件支持Cryptologic活动 |
| CSSA | Centralized Software Support Activity | 集中的软件支持活动 |
| CSSA | Corporation des Sciences de la Sante de l'Atlantique (Atlantic Health Sciences Corporation; Saint John, NB, Canada) | 公司des科学·德·拉·圣•de fixation 'Atlantique(大西洋健康科学、圣约翰、铌、加拿大) |
| CSSA | Computer Society of South Africa | 南非计算机学会 |
| CSSA | Contaminated Soil Storage Area | 受污染土壤储存区 |
| CSSA | Combat Service Support Area | 战斗勤务支援地域 |
| CSSA | Consolidated Supply Support Activity | 综合供应支持活动 |
| CSSA | Central Supply Support Activity | 中央供应支持活动 |
| CSSA | Contact Special Security Administrator | 联系特别安全管理员 |
| CSSA | Comprehensive Social Security Assistance | 综合社会保障援助 |