MHS

• Air Memphis
• Ingenuity (helicopter)
• Leodis V. McDaniel High School
• Malibu High School
• Marianas High School
• Marryatville High School
• Marshwood High School
• Marysville High School (disambiguation)
• Massapequa High School
• Master of Health Science
• Matthew Humberstone School
• Mauldin High School
• McDonald High School (Ohio)
• McMinnville High School
• Meadowhall Interchange
• Melbourne High School
• Memorial High School (Hedwig Village, Texas)
• Mental health service (disambiguation)
• Message Handling System
• Michigan Humane Society
• Microwave Humidity Sounder
• Mietshäuser Syndikat
• Milford Haven School
• Milford High School (disambiguation)
• Military Health System
• Millburn High School
• Milpitas High School
• Modular Handgun System
• Montana Historical Society
• Montpelier High School (disambiguation)
• Moscow High School
• Muscatine High School