| FCIS | Family and Community Integration Services 
| Others |
| FCIS | Fellow in the Chartered Institute of Secretaries
| Others |
| FCIS | Fellow of the Institute of Chartered Secretaries and Administrators
| Others |
| FCIS | Fellowship of Christian International Schools
| Others |
| FCIS | First Choice Insurance Services
| Others |
| FCIS | First Community Insurance Services
| Others |
| FCIS | Flight Crew Information System
| Others |
| FCIS | Flood Control Integrated System
| Others |
| FCIS | Florida Council of Independent Schools
| Others |
| FCIS | Foreclosure Case Information Statement
| Others |
| FCIS | Foundation Certificate in Information Security
| Others |