PMHS may refer to: Polymethylhydrosiloxane
Schools Parramatta Marist High School, Westmead, New South Wales, Australia Parry McCluer High School, Buena Vista, Virginia, United States Pasadena Memorial High School, Pasadena, Texas, United States Patchogue-Medford High School, Medford, New York, United States Pedro Menendez High School, St. Augustine, Florida, United States Pelham Memorial High School, Pelham, New York, United States Penn Manor High School, Millersville, Pennsylvania, United States Pennsville Memorial High School, Pennsville, New Jersey, United States Perry Meridian High School, Indianapolis, Indiana, United States Philadelphia Mennonite High School, Philadelphia, Pennsylvania, United States Picayune Memorial High School, Picayune, Mississippi, United States Port Macquarie High School, Port Macquarie, New South Wales, Australia