| MAHS | Madison Area Herpetological Society 
| Others |
| MAHS | Malaysian Academy of Han Studies
| Others |
| MAHS | Manual Arts High School
| Others |
| MAHS | Maritime Archaeological and Historical Society
| Others |
| MAHS | Master of Arts in Human Services
| Others |
| MAHS | Maywood Academy High School
| Others |
| MAHS | McNair Academic High School
| Others |
| MAHS | Meath Archaeological and Historical Society
| Others |
| MAHS | Medical And Health Sciences
| Others |
| MAHS | Medical Arts High School
| Others |
| MAHS | Memphis Academy of Health Sciences
| Others |
| MAHS | Menlo Atherton High School
| Others |
| MAHS | Menlo-Atherton High School
| Others |
| MAHS | MI Administrative Hearing System
| Others |
| MAHS | Michigan Administrative Hearing System
| Others |
| MAHS | Michigan Administrative Hearing System (Lansing, MI)
| Others |
| MAHS | Michigan Association of Honor Societies
| Others |
| MAHS | Middletown Area High School
| Others |
| MAHS | Midwest Art History Society
| Others |
| MAHS | Minnesota Association of Honor Societies
| Others |
| MAHS | Monroe Area High School
| Others |
| MAHS | Moon Area High School
| Others |
| MAHS | Mount Airy High School
| Others |
| MAHS | Mount Alvernia High School
| Others |
| MAHS | Munich American High School
| Others |