| Abbreviation | Definition |
|---|---|
| FPCS | First Presbyterian Church School |
| FPCS | Free Presbyterian Church of Scotland |
| FPCU | First Parish Church United |
| FPCU | First Presbyterian Church of Ulysses |
| FRBC | First Romanian Baptist Church |
| FRBC | Flint River Baptist Church |
| FRBC | Fort Richmond Baptist Church |
| FRBC | Franklin Road Baptist Church |
| FRCW | First Reformed Church of Wynantskill |
| FRFC | Front Range Foursquare Church |
| FSCL | Fort Smith Church League |
| FSPC | Federation of Swiss Protestant Churches |
| FSSC | First Spiritual Science Church |
| FTPC | First Thai Presbyterian Church |
| FTPC | Forster Tuncurry Presbyterian Church |
| FTPC | Foster Tukwila Presbyterian Church |
| FUMC | Franklin United Methodist Church |
| FVC | Faith and Victory Church |
| FVCC | Fox Valley Christian Church |
| FWCT | Free Wesleyan Church of Tonga |