| Abbreviation | Definition |
|---|---|
| FCIS | Fellowship of Christian International Schools |
| FCM | Federation of Christian Ministries |
| FCM | Fundamental Christian Ministry |
| FCMF | Faith Christian Ministers Fellowship |
| FCMS | Foothills Christian Middle School |
| FCNA | Fiqh Council of North America |
| FCOC | Flushing Christian Outreach Center |
| FCPA | Fellowship of Christian Physician Assistants |
| FCPO | Fellowship of Christian Peace Officers |
| FCS | Family Consultation Service |
| FCS | Fellowship Of Christian Stagehands |
| FCS | Fellowship of Christian Students |
| FCS | First Church Of Swing |
| FCSCJ | Daughters of the Charity of the Sacred Heart of Jesus |
| FCYF | Faridabad Children & Youth Fellowship |
| FDCC | Faith Deliverance Christian Center |
| FDL | Freedom, Diversity, and Love |
| FDL | Fully Devoted to Life |
| FEAR | Faith, Evidence, And Reality |
| FEAR | False Entity Appearing Real |