| HACE | Hansen Applied Computer Engineering 
| Others |
| HACE | Harvard Alumni for Climate and the Environment
| Others |
| HACE | Health and Career Education
| Others |
| HACE | Heterogeneous Autonomous Complex and Evolving
| Others |
| HACE | High Altitude Cerebral Edema
| Others |
| HACE | High-Altitude Cerebral Edema
| Others |
| HACE | Hispanic Alliance for Career Enhancement
| Others |
| HACE | Hispanic Association of Contractors and Enterprises
| Others |
| HACE | Hispanics Advancing Culture and Education
| Others |
| HACE | Holland Aviation Consultancy Engineering
| Others |
| HACE | Home And Community Environment
| Others |
| HACE | Housing Authority of the City of Elizabeth
| Others |
| HACE | Housing Authority of the City of Erie
| Others |
| HACE | Hydro Air Concept Energy
| Others |