| Acronym | Definition |
|---|
| MHAC➣Mental Health Association in California (Sacramento, CA) |
| MHAC➣Mediterranean Heating and Air Conditioning (Canoga Park, CA) |
| MHAC➣Maytag Home Appliance Center (various locations) |
| MHAC➣Microhydranencephaly |
| MHAC➣Minor Hockey Association of Calgary |
| MHAC➣Mental Health Association of Connecticut, Inc. |
| MHAC➣Midwest Hispanic AIDS Coalition |
| MHAC➣Manufactured Housing Association of Canada |
| MHAC➣Mental Health Association of Colorado, Inc. |
| MHAC➣Multifrequency High-Gain Antenna Configuration |
| MHAC➣Measham Heating & Air Conditioning Ltd (UK) |
| MHAC➣Miniature Horse Association of Canada, Inc. |