| MHS | International Symposium on Micro-machine and Human Science 
| Others |
| MHS | M Handling Systems
| Others |
| MHS | Machines Higher Speed
| Others |
| MHS | Madison High school
| Others |
| MHS | Madras High School
| Others |
| MHS | Maheshwari Higher Secondary School
| Others |
| MHS | Mail Handling System
| Others |
| MHS | Maine Historical Society
| Others |
| MHS | Maine Hosting Solutions
| Others |
| MHS | Malignant Hyperthermia Susceptibility
| Others |
| MHS | Managed Health Services
| Others |
| MHS | Managed Hosting Services
| Others |
| MHS | Managed Hosting Solutions
| Others |
| MHS | Manchester High School
| Others |
| MHS | Mandarin High School
| Others |
| MHS | Manufactured Housing Survey
| Others |
| MHS | Manville Health Science
| Others |
| MHS | Manville High Sauna
| Others |
| MHS | Marblehead High School
| Others |
| MHS | Marcus High School
| Others |
| MHS | Marietta High School
| Others |
| MHS | Marshalltown High School
| Others |
| MHS | Marymount High School
| Others |
| MHS | Maryville High School
| Others |
| MHS | Mass Health Screening
| Others |
| MHS | Massachusetts Historical Society
| Others |
| MHS | Master in Health Science
| Others |
| MHS | Master in/of Health Science(s)
| Others |
| MHS | Master of Health Sciences
| Others |
| MHS | Master of Healthcare Systems
| Others |
| MHS | Mastering High Standards
| Others |
| MHS | Masters of Human Services
| Others |
| MHS | Material Handling Systems
| Others |
| MHS | Maternal Half Sib
| Others |
| MHS | Mayo Health System
| Others |
| MHS | McAllen High School
| Others |
| MHS | McDowell High School
| Others |
| MHS | Mcmaster Hungry Students
| Others |
| MHS | McMinnville High School
| Others |
| MHS | Mead High School
| Others |
| MHS | Meadville High School
| Others |
| MHS | Meat Hygiene Service
| Others |
| MHS | Medco Health Solutions
| Others |
| MHS | Medical Health Service
| Others |
| MHS | Medical Health Services
| Others |
| MHS | Medicine Health and Society
| Others |
| MHS | Medicine Health and Society Medicine Health
| Others |
| MHS | Memorial Healthcare System
| Others |
| MHS | Memorial High School
| Others |
| MHS | Memphis Historic Spec
| Others |
| MHS | Mendon High School
| Others |
| MHS | Mennonite Health Services
| Others |
| MHS | Menomonie High School
| Others |
| MHS | Mental Health Service
| Others |
| MHS | Mental Health Services
| Others |
| MHS | Mental Health Systems
| Others |
| MHS | Merced High School
| Others |
| MHS | Merchandise Handling System
| Others |
| MHS | Mesquite High School
| Others |
| MHS | Message Handling Service
| Others |
| MHS | Message Handling Switch
| Others |
| MHS | Message Handling System
| Others |
| MHS | Metaphysical Humanistic Science
| Others |
| MHS | Methodist Hospital of Sacramento
| Others |
| MHS | Methuen High School
| Others |
| MHS | Metropolitan High School
| Others |
| MHS | Metropolitan Highway System
| Others |
| MHS | Miami High School
| Others |
| MHS | Michael Horst Schmidt
| Others |
| MHS | Michigan Historical Society
| Others |
| MHS | Michigan Humane Society
| Others |
| MHS | Microwave Humidity Sensor
| Others |
| MHS | Microwave Humidity Sounder
| Others |
| MHS | Middleton High School
| Others |
| MHS | Midway High School
| Others |
| MHS | Migrant Head Start
| Others |
| MHS | Mild Hybrid System
| Others |
| MHS | Mile High Section
| Others |
| MHS | Milford High School
| Others |
| MHS | Military Health System
| Others |
| MHS | Military Healthcare System
| Others |
| MHS | Millbrook High School
| Others |
| MHS | Millennium High School
| Others |
| MHS | Milpitas High School
| Others |
| MHS | Milton Hershey School
| Others |
| MHS | Milwaukie High School
| Others |
| MHS | Mingo Health Solutions
| Others |
| MHS | Minimum Hot Spot
| Others |
| MHS | Minnesota Historical Society
| Others |
| MHS | Mobile Hot Spot
| Others |
| MHS | Modern High School
| Others |
| MHS | Modular Handgun System
| Others |
| MHS | Mold Hotrunner Solutions
| Others |
| MHS | Monadnock Humane Society
| Others |
| MHS | Montana Historical Society
| Others |
| MHS | Montclair High School
| Others |
| MHS | Montebello High School
| Others |
| MHS | Montgomery High School
| Others |
| MHS | Montwood High School
| Others |
| MHS | Mooresville High School
| Others |
| MHS | Morgantown High School
| Others |
| MHS | Motor Home Specialist
| Others |
| MHS | Motorhistorisk Samrad
| Others |
| MHS | Mount Shasta Rep Airport, Mount Shasta, California USA
| Others |
| MHS | Mounted Hydraulic System
| Others |
| MHS | Multi Health Systems
| Others |
| MHS | Multi-Health Systems
| Others |
| MHS | Multimedia Home Server
| Others |
| MHS | Multiple Head Shot
| Others |
| MHS | Mumford High School
| Others |
| MHS | Mundelein High School
| Others |
| MHS | Murphysboro High School
| Others |
| MHS | Muscatine High School
| Others |
| MHS | Musical Heritage Society
| Others |
| MHS | Must Have Skill
| Others |
| MHS | Must Have Software
| Others |