| CCSS | the Center for Catalysis and Surface Science | 催化与表面科学中心 |
| CCSS | Common Channel Signaling System | 公共信道信令系统 |
| CCSS | Comanche Crew Support System | 科曼奇机组支持系统 |
| CCSS | Cass Community Social Services | 卡斯社区社会服务 |
| CCSS | Consolidated Critical Support System | 整合的关键支持系统 |
| CCSS | Community Charge for Standard Spending (UK) | 标准支出社区费用（英国） |
| CCSS | Center for Computer System Security | 计算机系统安全中心 |
| CCSS | Computer Crime and Security Survey | 计算机犯罪与安全调查 |
| CCSS | Coordination Committee on Social Sector | 社会部门协调委员会 |
| CCSS | Coordinating Committee on the Social Sector | 社会部门协调委员会 |
| CCSS | Command & Control Switching Systems | 指挥及控制开关系统 |
| CCSS | Center for Complex Systems Studies (Kalamazoo College) | 复杂系统研究中心（卡拉马祖学院） |
| CCSS | Command Commodity Supply System | 指挥商品供应系统 |
| CCSS | Canadian Computer Security Symposium | 加拿大计算机安全研讨会 |
| CCSS | Controlled Copy Support Systems, Inc | 受控副本支持系统公司 |
| CCSS | Conference of the Cognitive Science Society | 认知科学学会会议 |
| CCSS | Communications-Computer Systems Security | 通信—计算机系统的保密 |
| CCSS | Commodity Command Standard System | 日用品指挥标准系统 |
| CCSS | Cedar Creek State School (Gold Coast, Australia) | 雪松溪州立学校（澳大利亚黄金海岸） |
| CCSS | Council of Christian Scholarly Societies | 基督教学术学会理事会 |
| CCSS | Combat Communications Support Squadron | 战斗通信支援中队 |
| CCSS | Chaotic Complex Spreading Sequence | 混沌复扩展序列 |
| CCSS | CSIRT Collaboration Support System | CSIRT协作支持系统 |
| CCSS | Command and Control Simulation System | 指挥与控制模拟系统 |
| CCSS | Center for Civil Society Studies | 公民社会研究中心 |
| CCSS | Command Center Support System | 指挥中心支持系统 |
| CCSS | Cryptologic Combat Support System | 密码作战支持系统 |
| CCSS | Cruise Control Set Switch | 巡航控制设置开关 |
| CCSS | Combat Cryptologic Support System | 战斗密码支持系统 |
| CCSS | Chinese Character Synthesis System | 汉字合成系统 |
| CCSS | Command and Control Support System | 指挥和控制支持系统 |
| CCSS | China Current Student Society (Harvard University) | 中国当代学生会（哈佛大学） |
| CCSS | Communications Channel Signalling System | 通信信道信号系统 |
| CCSS | Combat System and Command Support System Directorate | 作战系统和指挥支持系统局 |
| CCSS | Clinical Care Support System | 临床护理支持系统 |
| CCSS | Combat Command Support System | 作战指挥支持系统 |
| CCSS | Caja Costarricense del Seguro Social (Costa Rican Social Security Institution) | Caja Costarricense del Seguro Social（哥斯达黎加社会保障机构） |