| Acronym | Definition |
|---|
| CHS | Central High School |
| CHS | California Historical Society |
| CHS | Center for Health Statistics |
| CHS | Canadian Hydrographic Service |
| CHS | Catholic High School (Singapore) |
| CHS | Centennial High School (USA) |
| CHS | Community Health Services |
| CHS | Canadian Hearing Society |
| CHS | Cardiovascular Health Study |
| CHS | Carolinas Healthcare System |
| CHS | Connecticut Historical Society |
| CHS | Children's Home Society |
| CHS | Center for Human Services |
| CHS | College of Human Sciences |
| CHS | Carmel High School |
| CHS | Capital Health System |
| CHS | Charlottesville High School (Charlottesville, Virginia) |
| CHS | Cascade High School (Leavenworth, Washington) |
| CHS | Chicago Historical Society |
| CHS | Columbine High School (Littleton, CO, USA) |
| CHS | Centre Hospitalier Spécialisé (French: specialty hospital) |
| CHS | Colorado Historical Society |
| CHS | Columbia High School (White Salmon, Washington) |
| CHS | Concord High School (USA) |
| CHS | California High School (San Ramon, CA) |
| CHS | Canyon High School (Canyon County, California) |
| CHS | Cupertino High School (Cupertino, CA) |
| CHS | Comprehensive Health Services (Cape Canaveral, FL) |
| CHS | Coronado High School (USA) |
| CHS | Carthage High School |
| CHS | Chediak-Higashi Syndrome |
| CHS | Cumberland High School (Rhode Island) |
| CHS | Carson High School |
| CHS | Child Health Surveillance |
| CHS | Certified in Homeland Security |
| CHS | Christiansburg High School (Virginia) |
| CHS | Cheltenham High School |
| CHS | Capital Harness Systems (Mentor Graphics Corporation) |
| CHS | Caledonia High School (Caledonia, MI, USA) |
| CHS | Cabinet for Health Services (Kentucky) |
| CHS | Chelmsford High School (Massachusetts, USA) |
| CHS | Commercial High Speed |
| CHS | Cherokee High School (Georgia) |
| CHS | Chandler High School (Arizona) |
| CHS | Comprehensive High School (Hudda, Quetta, Pakistan) |
| CHS | Cathedral High School |
| CHS | Canadian Hemophilia Society (Montreal, Canada) |
| CHS | Compact Helical System |
| CHS | Common Hardware/Software |
| CHS | Carlsbad High School |
| CHS | Campbell High School (Litchfield, NH) |
| CHS | Center for Human Simulation (University of Colorado) |
| CHS | Celebration High School (Celebration, Florida) |
| CHS | Circular Hollow Section (used in the steel construction industry) |
| CHS | Certified Hospitality Supervisor |
| CHS | Clovis High School (Clovis, NM) |
| CHS | Clayton High School (Clayton, Missouri) |
| CHS | Conestoga High School (Berwyn, Pennsylvannia) |
| CHS | Chillicothe High School |
| CHS | Clark High School (Las Vegas, Nevada) |
| CHS | Caldwell High School (various cities) |
| CHS | Crockett High School (Austin, Texas) |
| CHS | Campus Health Service |
| CHS | Chesterton High School (Indiana) |
| CHS | Calumet High School (Calumet, Michigan) |
| CHS | Creekview High School (Carrollton, TX, US) |
| CHS | Chinese High School (Singapore) |
| CHS | Clifton High School (New Jersey) |
| CHS | Conway High School (Conway, AR) |
| CHS | Combat Health Support (US Army) |
| CHS | Combat Health Support |
| CHS | Canterbury High School (Ottawa, Canada) |
| CHS | Cleburne High School (Cleburne, TX, USA) |
| CHS | Communications High School (New Jersey) |
| CHS | Chugiak High School (Alaska) |
| CHS | Cerritos High School |
| CHS | Cameron High School (West Virginia) |
| CHS | Carteret High School |
| CHS | Crofton House School |
| CHS | Coldwater High School (Coldwater, Michigan) |
| CHS | Common Hardware Systems |
| CHS | Cedartown High School (Cedartown, Georgia) |
| CHS | Children's Health Services |
| CHS | Crestview High School (USA) |
| CHS | Cottonwood High School |
| CHS | Cortez High School (Phoenix, AZ ) |
| CHS | Chatsworth High School |
| CHS | Cibola High School (Albuquerque, NM) |
| CHS | Chatard High School |
| CHS | Crookston High School (Minnesota) |
| CHS | Canisius High School (Crusaders; Buffalo, NY) |
| CHS | Center for Humanistic Studies |
| CHS | Calaveras High School (California) |
| CHS | Chino High School (Chino, California) |
| CHS | Cashmere High School (Cashmere, WA) |
| CHS | Centereach High School (New York) |
| CHS | Cloverleaf High School (Lodi, OH) |
| CHS | Cabrini High School |
| CHS | Charleston, SC, USA - Charleston International Airport (Airport Code) |
| CHS | Cactus High School |
| CHS | Ceres High School (Ceres, CA) |
| CHS | Clarence High School (Clarence, NY) |
| CHS | Come Home Soon |
| CHS | Carlinville High School |
| CHS | Crossland High School |
| CHS | Cadillac High School (Michigan) |
| CHS | Calgary Horticultural Society (Canada) |
| CHS | Clewiston High School (Clewiston, FL, USA) |
| CHS | Chancellor High School |
| CHS | Cochrane High School (Alberta, Canada) |
| CHS | Campbellsville High School (Kentucky) |
| CHS | Cheyenne High School (Las Vegas, NV) |
| CHS | Chapmanville High School (West Virginia) |
| CHS | Counseling for High Skills |
| CHS | Chatswood High School (Sydney, Australia) |
| CHS | Cohoes High School (Cohoes, NY) |
| CHS | Christleton High School |
| CHS | Castle Hot Springs (Arizona) |
| CHS | Cousino High School (Warren, Michigan) |
| CHS | Clarenceville High School (Livonia, MI) |
| CHS | Charging Subsystem |
| CHS | Caruthersville High School |
| CHS | Choudrant High School (Choudrant, LA) |
| CHS | Chittenango High School (Chittenango, New York) |
| CHS | Canadian Hemerocallis Society |
| CHS | Common Hardware Suite |
| CHS | Clydesdale Horse Society |
| CHS | Cyprus High School |
| CHS | Carlingford High School (Carlingford, Sydney, Australia) |
| CHS | California Horticultural Society |
| CHS | Coalgate High School (Coalgate, OK) |
| CHS | Central Healthy Start |
| CHS | Coolant Heat Storage (Toyota Motor Corporation) |
| CHS | Collimated Hole Structure |
| CHS | Candidate Harmonized Standard |
| CHS | Cylinder(s) Head(s) Sector(s) |
| CHS | Cheese Head Screw |
| CHS | Can't Hit Stuff (polite form) |
| CHS | Coalition for Homeland Security |
| CHS | Circular Hollow Shape (structural steel connections) |
| CHS | Contractor Highgrade Sylvania (electronic tubes made by Sylvania for US Army) |
| CHS | Client Handling System |
| CHS | Communications Hub Structure (construction) |
| CHS | Conventional Hybrid System |
| CHS | Commander's Handstation (Bradley turret handstation operated by the commander) |
| CHS | Commonwealth Historians Society (UK) |
| CHS | Cabcalor Hoofcare Specialist |
| CHS | Creative Home Supplies Limited (UK) |