| Acronym | Definition |
|---|
| GCHS | Gunma Prefectural College of Health Sciences (Japan) |
| GCHS | Garden City High School (USA) |
| GCHS | Goose Creek High School (South Carolina) |
| GCHS | Gulf Coast High School (Naples, Florida) |
| GCHS | Grundy Center High School (Iowa) |
| GCHS | Granite City High School (Granite City, IL) |
| GCHS | Gulf Coast Humane Society (Corpus Christi, Texas) |
| GCHS | Greenfield Central High School (Indiana) |
| GCHS | Grayslake Community High School (Grayslake, IL, USA) |
| GCHS | Grover Cleveland High School (Ridgewood, NY) |
| GCHS | Greeley Central High School (Colorado) |
| GCHS | Grant County Humane Society (Elbow Lake, MN) |
| GCHS | Gas Chromatography with Headspace Autosampling (chemistry) |
| GCHS | Gas Central Heating System |
| GCHS | Gentle Care Home Services, Inc. (Piscataway, NJ) |
| GCHS | Gilmer County High School (West Virginia) |
| GCHS | Grayson County High School (Lietchfield, Kentucky) |
| GCHS | Gloucester Catholic High School (New Jersey) |
| GCHS | Gonzaga College High School |
| GCHS | Gates Chili High School (Rochester, NY) |
| GCHS | Greensburg Community High School (Greensburg, IN) |
| GCHS | Guilderland Central High School |
| GCHS | Gloucester City High School |
| GCHS | Grantham Church High School (UK) |
| GCHS | Gladwin County Historical Society (Michigan) |
| GCHS | Government Comprehensive High School (Pakistan) |