EHS may refer to: Education Early Head Start, an American educational program EHS Institute, a teacher training program in Hardwick, Massachusetts, United States Schools Disambiguation East High School (disambiguation) Eastern High School (disambiguation) Edison High School (disambiguation) Elkins High School (disambiguation) Enterprise High School (disambiguation) Episcopal High School (disambiguation) Essex High School (disambiguation) Eureka High School (disambiguation) Evergreen High School (disambiguation) Australia Engadine High School, Sydney, New South Wales Canada Esquimalt High School, Esquimalt, British Columbia India Edrakpur High School, Birbhum district, West Bengal South Africa Ermelo High School, Ermelo, Mpumalanga United States Eagan High School, Eagan, Minnesota Eagle High School, Eagle, Idaho Eagle Hill School, Hardwick, Massachusetts Eastmont High School, East Wenatchee, Washington Ellendale High School (Ellendale School District), Ellendale, North Dakota Ellensburg High School, Ellensburg, Washington Elsinore High School, Wildomar, California Empire High School, Tucson, Arizona Escondido High School, Escondido, California Etna High School, in Etna, California Health and medicine EHS Today, an occupational safety and health magazine Emergency Health Services, in Nova Scotia, Canada Emergency Hospital Service, in the United Kingdom during World War II Emergency Hospital Service (Scotland) Environment, health and safety Exploding head syndrome Exertional heat stroke; see Heat stroke Science and technology Electromagnetic hypersensitivity, claimed sensitivity to mobile phone towers etc. Electronic hook switch, in connecting a wireless headset to a phone European Home Systems Protocol, a communication protocol using power line communication Microsoft Exchange Hosted Services Engelbreth-Holm-Swarm matrix, extracellular protein mixture known as Matrigel Other uses Early Harvest Scheme, a trade agreement Ecclesiastical History Society Economic History Society Eternal Haunted Summer, an American literary magazine