| CGSS | Cedar Girls' Secondary School (Singapore) | 雪松女子中学(新加坡) |
| CGSS | Command and General Staff School | 指挥和参谋学校 |
| CGSS | Consultative Group on Strategic Security | 战略安全协商小组 |
| CGSS | Contract and Grant: Summer Session | 合同与赠款：夏季课程 |
| CGSS | Cryogenic Gas Storage Subsystem (NASA) | 低温气体储存子系统（NASA） |
| CGSS | Comparison Group Selection Service | 比较组选择服务 |