| LCAS | Lorain County Aquarium Society (Ohio) | 罗兰县水族馆协会（俄亥俄州） |
| LCAS | Lake County Astronomical Society (Illinois) | 莱克县天文学会（伊利诺伊州） |
| LCAS | Link Capacity Adjustment Scheme (SDH/SONET Virtual Concatenation) | 连接能力调整方案(SDH / SONET虚拟连接) |
| LCAS | Licensed Clinical Addictions Specialist | 执业临床成瘾专家 |
| LCAS | Link Capacity Adjustment Scheme | 链路容量调整方案 |