| Abbreviation | Definition |
|---|---|
| FRHS | Fellow of the Royal Historical Society |
| FSSH | Flying Saucers Secret History |
| FTLH | Five Towns Local History |
| GBOH | Great Battles Of History |
| GEH | Global Earthquake History |
| GFHP | Gregg Family History Project |
| GGIE | Golden Gate International Exposition |
| GHA | Graduate History Association |
| GHCN | Global Historical Climatology Network |
| GHN | Global History Network |
| GHQ | Georgia Historical Quarterly |
| GNHS | Glasgow Natural History Society |
| GWC | Great Wall of China |
| GWH | Guns With History |
| HAA | History of Art and Architecture |
| HAAD | History of Art Architecture and Design |
| HABR | Historical Areas Board of Review |
| HAC | Historical Advisory Committee |
| HACK | Historical Area Cocktail Klub |
| HACT | Historical Administrative Code Table |