AHS may refer to:

• Academy of Health Sciences of the United States Army Medical Department Center and School
• Ayumi Hamasaki Sekai, an international internet fan club for Ayumi Hamasaki
• Alberta Health Services, a health care provider in Canada
• Alien hand syndrome, a neurological disorder affecting the hands
• American Headache Society, a professional society of health care providers
• American Helicopter Society, a professional society in the area of vertical flight
• American Heraldry Society, an organization dedicated to promoting heraldry in the United States
• American Hiking Society, a non-profit organisation dedicated to preserving trails
• American Horror Story, an American TV show
• American Horticultural Society, an educational organization that recognizes and promotes excellence in American horticulture
• American Housing Survey, the largest regular national housing sample survey in the United States
• Antiquarian Horological Society, the British scholarly society for horological enthusiasts
• Arizona Historical Society, an organization whose goal is to collect, preserve, interpret, and disseminate the history of Arizona
• National Rail code for Ashurst (Kent) railway station, United Kingdom
• Australian Hospital Ship - see AHS Centaur and List of Australian hospital ships
• Automated highway system, an advanced Intelligent transportation system technology designed to provide for driverless cars on specific rights-of-way
• Atlantic hurricane season, the period when hurricanes usually form in the Atlantic Ocean
• African horse sickness, a highly infectious disease commonly affecting horses, mules, donkeys and zebras
• Adventist Health System, the umbrella organization of Seventh-day Adventist hospitals
• Adventist Health Studies, a series of medical studies of Seventh-day Adventists
• Asociaci n Hermanos Sa z, a Cuban rap/hip-hop organization
• National Federation of Atheist, Humanist and Secular Student Societies, a free thinking student movement in the United Kingdom
• Ambulatory Healthcare Services
• Abertay Historical Society - a Scottish historical society

High schools

• Aberdeen High School (disambiguation)
• Abingdon High School (disambiguation)
• Adelaide High School, Adelaide, Australia
• Agoura High School, Agoura Hills, California
• Aitkin High School, Aitkin, Minnesota
• Alameda High School, Alameda, California
• Albany High School (disambiguation)
• Albemarle High School, Charlottesville, Virginia
• Alhambra High School (Alhambra, California), a secondary school
• Alhambra High School (Martinez, California), a public high school
• Alhambra High School (Phoenix, Arizona), in the Phoenix Union High School District
• Alice High School, Alice, Texas
• Alternative High School (Calgary)
• Amarillo High School, Amarillo, Texas
• American High School (Fremont, California), a public secondary school located in Fremont, California
• American High School (Miami-Dade County, Florida), a secondary school located at 18350 NW 67 Avenue in the Country Club CDP of unincorporated Miami-Dade County, Florida, United States in Miami.
• Analy High School, Sebastopol, California
• Anderson High School (disambiguation) (several, see disambiguation page)
• Anglican High School, a secondary school in Singapore
• Annandale High School, Annandale, Virginia
• Annapolis High School (disambiguation)
• Ansonia High School (disambiguation)
• Antelope High School, Antelope, California
• Antelope Valley High School, Antelope, California
• Antioch High School, Antioch, California
• Apex High School, Apex, North Carolina
• Arapahoe High School (disambiguation)
• Arcadia High School (disambiguation)
• Archbishop Holgate's School, York, England
• Ardsley High School, Ardsley, New York
• Arlington High School (disambiguation)
• Armidale High School, Armidale, Australia
• Armstrong High School (disambiguation)
• Arrowhead High School, Hartland, Wisconsin
• Artesia High School (Lakewood, California), Lakewood, California
• Artesia High School (Artesia, New Mexico), the Public High School in the city of Artesia, New Mexico with grades 10th-12th. The School's colors are Orange, Black & White and their mascot is a bulldog
• Asheboro High School, Asheboro, North Carolina
• Asheville High School, Asheville, North Carolina
• Ashland High School (disambiguation)
• Atascocita High School, Atascocita, Texas
• Atlee High School, Mechanicsville, Virginia
• Auburn High School (disambiguation)
• Aviation High School (disambiguation), multiple aviation and aerospace focused high schools
• Aylesbury High School, Buckinghamshire, England
• Aylsham High School, Norfolk, England
• Aloha High School, Aloha, Oregon

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