| Acronym | Definition |
|---|
| FHS | Fachhochschule |
| FHS | Faculty of Health Sciences |
| FHS | Filesystem Hierarchy Standard (standard for the location of files on a UNIX system) |
| FHS | Franklin High School |
| FHS | Forest History Society (Durham, NC) |
| FHS | Folkehøyskole (Norway) |
| FHS | Floor Heating System |
| FHS | Framingham Heart Study |
| FHS | Franciscan Health System |
| FHS | Format Handling System |
| FHS | Filesystem Hierarchy Standard |
| FHS | Fan Heat Sink |
| FHS | Fayetteville High School (Fayetteville, Arkansas) |
| FHS | Forest High School |
| FHS | Foxborough High School (Foxborough, MA) |
| FHS | Functional Health Status (healthcare measurement) |
| FHS | Food Hygiene and Safety |
| FHS | File Hierarchy Standard |
| FHS | Foothill High School (California) |
| FHS | Farmington High School (Farmington, NM) |
| FHS | Florida Historical Society |
| FHS | For Heaven's Sake |
| FHS | Freedom High School (Bethlehem, PA) |
| FHS | Fremont High School |
| FHS | Foaming Hand Soap |
| FHS | Freeport High School (Freeport, Maine) |
| FHS | Final Honour School (UK) |
| FHS | Fairfield High School |
| FHS | Ferndale High School |
| FHS | Faster, Higher, Stronger |
| FHS | Fairfax High School (Virginia) |
| FHS | Fitchburg High School (Massachusetts) |
| FHS | First Health Services |
| FHS | Fédération Haïtienne de Ski (French: Haitian Ski Federation) |
| FHS | Federal Highway System |
| FHS | Family History Center |
| FHS | Family Home Service (various organizations) |
| FHS | Family Home Service |
| FHS | Fredericton High School (Canada) |
| FHS | Family Health Survey |
| FHS | Farrington High School (Kalihi, Oahu, Hawaii) |
| FHS | Friendswood High School (Friendswood, Texas) |
| FHS | Findlay High School |
| FHS | Fulton High School |
| FHS | Family Healthcare Services (various locations) |
| FHS | French Honor Society |
| FHS | Field High School (Suffield, OH) |
| FHS | Folsom High School (Folsom, California, USA) |
| FHS | Fetal Hydantoin Syndrome |
| FHS | Frequency Hopping Sequence |
| FHS | Fresno High School (Fresno, California) |
| FHS | Forney High School (Forney, Texas) |
| FHS | Fenton High School (Fenton, MI, USA) |
| FHS | Fuel Handling System |
| FHS | Fernley High School (Fernley, NV) |
| FHS | Fairfield Historical Society (Fairfield, CT) |
| FHS | Fallston High School (Fallston, MD) |
| FHS | Foote Health System (Jackson, MI) |
| FHS | Flying Helicopter Simulator |
| FHS | Fetal Heart Sounds |
| FHS | France Hygiène Service |
| FHS | Flat Head Screw |
| FHS | Frequency Hopping Synchronization (Bluetooth) |
| FHS | Fredonia High School |
| FHS | Fondation Hanns Seidel (Kinshasa, Democratic Republic of Congo) |
| FHS | Feinstein High School (Providence, RI) |
| FHS | Falmouth Historical Society |
| FHS | Fluid Handling System |
| FHS | Fellow of the Heraldry Society |
| FHS | Fairfax Senior High School (Los Angeles, California) |
| FHS | Friends of Hellenic Studies (New Jersey) |
| FHS | Fleetwood Area High School (Pennsylvania) |
| FHS | Foersvarshoehskolan (Swedish War College) |
| FHS | Frederick Historical Society (Frederick, MD) |