| Acronym | Definition |
|---|
| IHS➣Indian Health Service (HHS) |
| IHS➣International Headache Society |
| IHS➣International Hotel School (various organizations) |
| IHS➣Industrial Hygiene and Safety (various organizations) |
| IHS➣Import Health Standard (legal requirement; New Zealand) |
| IHS➣Integrated Healthcare Solutions (various locations) |
| IHS➣International High School (various locations) |
| IHS➣IBM HTTP Server |
| IHS➣in Home Systems |
| IHS➣Internal Hostile Structured |
| IHS➣Institute for Humane Studies |
| IHS➣Ideal Home Show (UK) |
| IHS➣Information Handling Services (DODISS) |
| IHS➣Iesus Hominum Salvator (Latin: Jesus, Savior of Men) |
| IHS➣Iowa Health System |
| IHS➣Integrated Heat Spreader |
| IHS➣Integrative Healthcare Symposium |
| IHS➣Interdisciplinary Health Services (various schools) |
| IHS➣International Hydrofoil Society |
| IHS➣Indiana Historical Society |
| IHS➣Institute for Advanced Studies (Vienna) |
| IHS➣Interlachen High School (Interlachen, FL) |
| IHS➣Inverse Hyperbolic Sine |
| IHS➣Idaho Humane Society (Boise, ID) |
| IHS➣Innovative Healthcare Solutions (various locations) |
| IHS➣Institute of Health Sciences |
| IHS➣Indian High School |
| IHS➣Institut d'Histoire Sociale (French: Institute of Social History) |
| IHS➣Institute for Humanist Studies |
| IHS➣In Hoc Signo Vinces (Latin: In this sign thou shalt win) |
| IHS➣Immaculata High School (New Jersey) |
| IHS➣International Health Summit |
| IHS➣International Healthcare Services (various organizations) |
| IHS➣Industrial Hygiene Services |
| IHS➣Integrated Healthcare Services (various locations) |
| IHS➣Irvington High School (Irvington, NJ) |
| IHS➣Interstate Highway System |
| IHS➣Integrated Household Survey (UK) |
| IHS➣International Horn Society |
| IHS➣In His Service |
| IHS➣Israel Heart Society (est. 1952) |
| IHS➣I Hope So |
| IHS➣In-House Suspension |
| IHS➣Industrial Hygiene Specialist |
| IHS➣Irondequoit High School (Rochester, NY) |
| IHS➣Iota-Eta-Sigma (first three letters of Jesus in Greek) |
| IHS➣Institute for Housing Studies |
| IHS➣International Hydrology Series (collaborative publishing program; UNESCO) |
| IHS➣Inglemoor High School (Kenmore, WA) |
| IHS➣Instytut Historii Sztuki (Polish: Instute of Art History) |
| IHS➣Interboro High School (Prospect Park, PA) |
| IHS➣Intelligent Hybrid System (various meanings) |
| IHS➣Infocrossing Healthcare Services |
| IHS➣International Hyperhidrosis Society |
| IHS➣Irving High School (Irving, Texas) |
| IHS➣Immokalee High School (Immokalee Florida) |
| IHS➣Inglewood High School (California) |
| IHS➣Integrated Human Studies (various oranizations) |
| IHS➣International Health Specialist (US Air Force) |
| IHS➣Irish Heritage Society (various locations) |
| IHS➣Isis Horus Seb (Egyptian gods) |
| IHS➣Incident Handling System |
| IHS➣Institute for Healthcare Studies |
| IHS➣Illinois Historical Survey |
| IHS➣In House Services |
| IHS➣Implant Heating System |
| IHS➣Italian Houses for Sale |
| IHS➣International Hoplology Society (Sedona, AZ) |
| IHS➣Internet Host Service |
| IHS➣Integrated Hospital System |
| IHS➣Ignatian Heritage Society (Milwaukee, WI) |
| IHS➣I Hate School |
| IHS➣Inverse Head and Shoulders (economics) |
| IHS➣Indiana Area Senior High School (Pennsylvania) |
| IHS➣Intelligent Highway Systems |
| IHS➣In Hoc Sepulcro (Latin: In This Tomb, epigraphy) |
| IHS➣Integrated Headgear System |
| IHS➣Integrated Harness Design System (various companies) |
| IHS➣Inner Heliospheric Sentinel |
| IHS➣International Hibernation Society |
| IHS➣Inherited Runners Scored (baseball) |