| Acronym | Definition |
|---|
| MHSAA➣Michigan High School Athletic Association |
| MHSAA➣Manitoba High Schools Athletic Association (Canada) |
| MHSAA➣Milton Hershey School Alumni Association (Pennsylvania) |
| MHSAA➣Milan High School Alumni Association (Tennessee) |
| MHSAA➣Madison High School Alumni Association (Tennessee) |
| MHSAA➣MacDonald High School Alumni Association (Canada) |