| Abbreviation | Definition |
|---|---|
| AGMA | Architectural Glass and Metal Association |
| AGMT | Architectural Glass and Metal Technician |
| AGOM | architecture generation and optimization method |
| AGRT | Architectural Glass Research and Testing |
| AGS | Architectural Glass Solution |
| AGS | Architectural Grilles Sunshades |
| AGW | Architectural Glass Works |
| AHA | Adaptive Hypermedia Architecture |
| AHC | Architectural Heritage Center |
| AHEAD | Applied Heating, Electrical, And Decorative |
| AHJ | Architectural Hardwood Joinery |
| AHSS | Architectural Heritage Society of Scotland |
| AHU | Air Handling Unit |
| AI | Angle of Incidence |
| AIA | American Institute of Architects |
| AIA | American Institute Of Architecture |
| AIA | American Institutes of Architect |
| AIA | Association of International Architects |
| AIALA | American Institute of Architects Los Angeles |
| AIAP | Association of Independent Architectural Photographers |