MHS (high schools)
MHS may refer to the following high schools:
In multiple locations
- Madison High School
- Manchester High School
- Marietta High School
- Marquette High School
- Mayfield High School
- Mayville High School
- McKinley High School
- Melrose High School
- Mercy High School
- Meridian High School
- Mesquite High School
- Miami High School
- Middleton High School
- Middletown High School
- Millbrook High School
- Monarch High School
- Montclair High School
- Monroe High School
- Morgan High School
United States
- Magruder High School, Rockville, Maryland
- Mainland High School, Daytona Beach, Florida
- Manalapan High School, Manalapan Township, New Jersey
- Manatee High School, Bradenton, Florida
- Mandarin High School, Jacksonville, Florida
- Manhattan High School, Manhattan, Kansas
- Marcus High School, Flower Mound, Texas
- Marietta High School (GA), Marietta, Georgia
- Marlboro High School, Marlboro Township, New Jersey
- Massapequa High School, Massapequa, New York
- Manvel High School, Manvel, Texas
- Maumee High School, in Maumee, Ohio
- Mayfair High School, Lakewood, California
- Mayo High School, Rochester, Minnesota
- Maysville High School, Zanesville, Ohio
- McCurdy High School, Española, New Mexico
- McDonald High School (Ohio), McDonald, Ohio
- McKinney High School, McKinney, Texas
- Meadowdale High School, Lynnwood, Washisngton
- Mehlville High School, St. Louis, Missouri
- Melbourne High School (Melbourne, Florida)
- Menomonie High School, Menomonie, Wisconsin
- Mentor High School, Mentor, Ohio
- Methacton High School, Norrsitown, Pennsylvania
- Miamisburg High School, Ohio
- Miller High School (Corning, Ohio)
- Mills High School, Millbrae, California
- Milpitas High School, California
- Minnetonka High School, Minnesota
- Minot High School, North Dakota
- Miramonte High School, Orinda, California
- Moline High School, Illinois
- Monson High School, Monson, Massachusetts
- Montpelier High School, Vermont
- Montwood High School, El Paso, Texas
- Moore High School, Oklahoma, Moore, Oklahoma
- Moorpark High School, California
- Morgantown High School, Morgantown, West Virginia
- Mounds View High School, Arden Hills, Minnesota
- Mukwonago High School, Mukwonago, Wisconsin
- Mulberry High School, Mulberry, Florida
- Munster High School, Indiana
- Muscatine High School, Iowa
Worldwide
- Macdonald High School, Quebec, Canada
- Malacca High School, Malacca, Malaysia
- Marden High School, Cullercoats, Tyne and Wear, England
- Massey High School, Auckland, New Zealand
- Mayflower High School, Essex, England
- Melbourne High School (Victoria), South Yarra, Australia
- Merewether High School, NSW, Australia
- Merivale High School, Ottawa, Canada
- Minhang High School, Shanghai, China
- Moncton High School, New Brunswick, Canada
- Monifieth High School, Angus, Scotland
- Muirfield High School, North Rocks, New South Wales, Australia
- Maitland High School, Maitland, New South Wales, Australia