| Abbreviation | Definition |
|---|---|
| GSLA | Georgia Students of Landscape Architecture |
| GSLA | Granite State Landscape Architects |
| GSOA | Global Services Operating Architecture |
| GTFA | Global Trade and Financial Architecture |
| GWB | Gypsum Wall Board |
| H | Hall |
| H | Handle |
| H/L | High Level |
| HAA | Hastings Architecture Associates |
| HAA | Home Accessory Architect |
| HAB | Happiness architecture |
| HAB | Happiness – architecture |
| HABS | Historic American Buildings Survey |
| HADL | human Architecture Description Language |
| HAER | Historic American Engineering Record |
| HAO | Holm Architecture Office |
| HAPC | Historic and Architectural Preservation Commission |
| HARB | Historic and Architectural Review Board |
| HARB | Historic Architectural Review Board |
| HARB | Historical Architectural Review Board |