| Abbreviation | Definition |
|---|---|
| FSCO | Facility Subcommittee of County Offices |
| FSMC | Family Service of Morris County |
| FSTC | Family Services of Tulare County |
| FSWC | Family Services of Warren County |
| FTCP | Friends of Tuscarawas County Parks |
| FTLC | First Title of Limestone County |
| FTOC | Families Together of Orange County |
| GCAC | Garden Club of Allegheny County |
| GCAC | Gwinnett County Alumnae Chapter |
| GCAD | Gregg County Appraisal District |
| GCAS | Galveston County Animal Shelter |
| GCC | Gillette Campbell County |
| GCCA | Greene County Council on the Arts |
| GCCD | Glacier County Conservation District |
| GCCD | Grant County Conservation District |
| GCCD | Greene County Conservation District |
| GCCS | Gloucester County Christian School |
| GCDC | Greenville County Detention Center |
| GCDP | Guilford County Democratic Party |
| GCEA | Galveston County Economic Alliance |