| FSAS | Faculty and Staff Activity System 
| Others |
| FSAS | Faculty Staff Activity System
| Others |
| FSAS | Fairfield Suisun Adult School
| Others |
| FSAS | Famous Stars and Straps
| Others |
| FSAS | Famous Stars And Stripes
| Others |
| FSAS | Fan System Assessment Specialist
| Others |
| FSAS | Federation of Scottish Aquarist Societies
| Others |
| FSAS | Feltonville School of Arts and Science
| Others |
| FSAS | Feltonville School of Arts and Sciences
| Others |
| FSAS | Financial Services Analytic Schemas
| Others |
| FSAS | Fire Support Automated System
| Others |
| FSAS | FLENDER Self Aligning System
| Others |
| FSAS | Flight Service Automation System
| Others |
| FSAS | Flight Slot Allocation System
| Others |
| FSAS | Florida School of Addiction Studies
| Others |
| FSAS | Florida Shock Anxiety Scale
| Others |
| FSAS | Force Selection and Activation System
| Others |
| FSAS | Fort Smith Animal Society
| Others |
| FSAS | Foundation For Saline Area Schools
| Others |
| FSAS | Franciscan Sisters of All Saints
| Others |
| FSAS | Fuel Savings Advisory System
| Others |
| FSAS | Fujitsu Support And Service
| Others |
| FSAS | Functional Self Assessment Scale
| Others |