| FAACS | Feasibility Assessment of Afforestation for Carbon Sequestration 
| Others |
| FAACS | Fellow American Academy of Clinical Sexologists
| Others |
| FAACS | Fellow of the American Academy of Cosmetic Surgery
| Others |
| FAACS | Feral and Abandoned Cat Society
| Others |
| FAACS | First American Asset Closing Services
| Others |
| FAACS | Fixed Asset Accounting and Control System
| Others |
| FAACS | Formal Approaches for Advanced Computing Systems
| Others |