| Abbreviation | Definition |
|---|---|
| FCCR | First Congregational Church of Riverhead |
| FCFW | Falls Church Feeds the World |
| FCHS | Falls Church High School |
| FCHS | Frank Church High School |
| FCK | Friends Church in Kenya |
| FCLL | First Church of the Last Laugh |
| FCNB | First Church of the Nazarene Bradenton |
| FCOB | First Church of the Brethren |
| FCOB | Frederick Church of the Brethren |
| FCOC | Faith Christian Outreach Church |
| FCOC | Fayetteville Church of Christ |
| FCOC | First Church of Christ |
| FCOC | Frederick Church of Christ |
| FCOG | First Church of God |
| FCON | Federated Church of Norfolk |
| FCPC | Falls Church Presbyterian Church |
| FCPC | First Central Presbyterian Church |
| FCPC | First Chinese Presbyterian Church |
| FCPC | Fountain City Presbyterian Church |
| FCPC | Fox Chapel Presbyterian Church |