| HACR | Hacrhigh Accuracy Cryogenic Radiometry 
| Others |
| HACR | Heating Air Conditioning And Refrigeration
| Others |
| HACR | Heating Air Conditioning Refrigeration
| Others |
| HACR | Heating Air-Conditioning & Refrigeration
| Others |
| HACR | Heating, Air Conditioning, and Refrigeration
| Others |
| HACR | Helicopter Active Control Rotor
| Others |
| HACR | Hierarchical Algorithm for Curves and Ridges
| Others |
| HACR | High Accuracy Cryogenic Radiometer
| Others |
| HACR | Hispanic Association for Corporate Responsibility
| Others |
| HACR | Hispanic Association of Corporate Responsibility
| Others |
| HACR | Hispanic Association on Corporate Responsibility
| Others |