| CSTC | China Shipbuilding Trading Company Limited | 中国船舶贸易有限公司 |
| CSTC | China Software Tesing Center | 中国软件评测中心 |
| CSTC | Canadian Skilled Trades Council (Labour Union) | 加拿大技能贸易委员会（工会） |
| CSTC | Canadian Sports Tourism Coalition | 加拿大体育旅游联盟 |
| CSTC | Calcutta State Transport Corporation | 加尔各答国家运输公司 |
| CSTC | Consolidated Space Test Center | 统一空间试验中心 |
| CSTC | Cyber Solutions Tools Center (Lawrence Livermore National Laboratory CIAC) | 网络解决方案工具中心（劳伦斯利弗莫尔国家实验室CIAC） |
| CSTC | Combined Security Transition Command | 联合安全过渡命令 |
| CSTC | Computer Security Technology Center | 计算机安全技术中心 |
| CSTC | Canonical Space-Time Coordinates | 标准时空坐标 |
| CSTC | Cyclotomic Space-Time Code | 分圆时空码 |
| CSTC | Consolidated Satellite Test Center | 联合卫星测试中心 |