| Abbreviation | Definition |
|---|---|
| APLA | Architecture Planning and Landscape Architecture |
| APLUSI | Architecture Plus Interiors |
| APRB | Architectural Preservation and Review Board |
| APSA | African Peace and Security Architecture |
| APTH | Apartment, THird floor |
| APV | Architectural Products of Virginia |
| APX | Approximately |
| ARAD | Architectural Research And Design |
| ARAE | Architects Register Admission Examination |
| ARB | Architects Registration Board |
| ARB | The Architectural Review Board |
| ARC | Architectural Resources Cambridge |
| ARC | Architecture Registration Corps |
| ARC | Architecture Restoration Conservation |
| ARC | Artifact Research Centre |
| ARCA | Associate of the Royal College of Art (London) |
| ARCANA | Architects Reimagining Computing Around New Applications |
| ARCC | Architectural Research Centers Consortium |
| ARCHI | Architects |
| ARCHITECT | Architecture |