| LSSC | Launch Services Support Contract | 启动服务支持合同 |
| LSSC | Logistics Systems Support Center | 后勤系统支持中心 |
| LSSC | Lean Six Sigma Consulting (Green Cove Springs, FL) | 精益六西格玛咨询（佛罗里达州格林湾斯普林斯） |
| LSSC | Lake Superior State College (Michigan) | 苏必利尔湖州立大学（密歇根州） |
| LSSC | Logistic System Support Characteristics | 后勤系统支持特点 |
| LSSC | Life Skills Support Center (US military; mental health services) | 生活技能支持中心（美军；心理健康服务） |
| LSSC | Logistics Support Status Code | 后勤保障状态代码 |
| LSSC | Learning Support Services Center | 学习支持服务中心 |
| LSSC | Lake Superior State College | 苏必利尔湖州立学院 |
| LSSC | Light Seal Support Craft | 轻型密封支撑工艺 |
| LSSC | Leon School and Sports College | 里昂学校和体育学院 |