| Acronym | Meaning |
 | FLETC | Federal Law Enforcement Training Center |
| FLRA | Federal Labor Relations Authority |
| FMC | Federal Maritime Commission |
| FMCS | Federal Mediation And Conciliation Service |
| FMCSA | Federal Motor Carrier Safety Administration |
| FMLA | Family And Medical Leave Act |
| FMS | Financial Management Service |
| FMSHRC | Federal Mine Safety And Health Review Commission |
| FNCS | Food |
| FNMA | Federal National Mortgage Association |
| FNS | Food And Nutrition Service |
| FOIA | Freedom Of Information Act |
| FOMC | Federal Open Market Committee |
| FPDC | Federal Procurement Data Center |
| FR | Federal Register |
| FRA | Federal Railroad Administration |
| FRB | Federal Reserve Board |
| FRS | Federal Reserve System; Federal Relay Service |
| FRTIB | Federal Retirement Thrift Investment Board |
| FS | Forest Service |
| FSA | Farm Service Agency; Office Of Federal Student Aid |
| FSIS | Food Safety And Inspection Service |
| FSS | Federal Supply Service |
| FTA | Federal Transit Administration |
| FTC | Federal Trade Commission |
| FTS | Federal Technology Service |
| FWS | Fish And Wildlife Service |
| FYSB | Family And Youth Services Bureau |
| GAO | Government Accountability Office |
| GATT | General Agreement On Tariffs And Trade |
| GCMD | Global Change Master Directory |
| GILS | Government Information Locator Service |
| GINNIE MAE | Government National Mortgage Association |
| GIPSA | Grain Inspection |
| GIS | Geographic Information Systems |
| GNIS | Geographic Names Information System |
| GNMA | Government National Mortgage Association |
| GPO | Government Printing Office |
| GPRA | Government Performance And Results Act |
| GPS | Global Positioning System |
| GSA | General Services Administration |
| GSFC | Goddard Space Flight Center |
| GWA | Governmentwide Accounting Project Group |
| GWOB | Government Without Boundaries |
| HAB | HIV/AIDS Bureau |
| HAC | Health Administration Center |
| HCFA | Health Care Financing Administration (changed To CMS) |
| HHS | Department Of Health And Human Services |
| HIRS | Health Information Resources Service |
| HPCC | High Performance Computing And Communications |
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