| Acronym | Definition |
|---|
| MHAD➣Mental Health Assistance Dogs (UK) |
| MHAD➣Mental Health Advance Directive (legal statement) |
| MHAD➣Mental Health Awareness Day (various locations) |
| MHAD➣Market High Advertising Ltd (Canada) |
| MHAD➣Mental Health and Disabilities Administration (Maryland) |