| FSAS | Flight Service Automation System | 飞行服务自动化系统 |
| FSAS | Fort Smith Animal Society | 史密斯堡动物协会 |
| FSAS | Famous Stars And Stripes | 著名的星星和条纹 |
| FSAS | Fan System Assessment Specialist | 风扇系统评估专家 |
| FSAS | Florida School of Addiction Studies | 佛罗里达毒瘾研究学院 |
| FSAS | Force Selection and Activation System | 力选择和激活系统 |
| FSAS | Fuel Savings Advisory System | 燃油节约咨询系统 |
| FSAS | Franciscan Sisters of All Saints | 方济各圣徒修女会 |
| FSAS | Famous Stars And Straps (clothing label) | 著名明星和表带（服装标签） |