| Acronym | Definition |
|---|
| OHS➣Occupational Health Services (various organizations) |
| OHS➣Occupational Health and Safety |
| OHS➣Office of Head Start (US DHHS) |
| OHS➣Ohio Historical Society |
| OHS➣Organ Historical Society |
| OHS➣Oracle HTTP Server |
| OHS➣Oregon Historical Society (Portland, OR) |
| OHS➣Office of Homeland Security (USA) |
| OHS➣Oral Health Section (various organizations) |
| OHS➣Online Help System |
| OHS➣Open Hypermedia Systems |
| OHS➣Oklahoma Historical Society (Oklahoma City, OK) |
| OHS➣Oswego High School |
| OHS➣October Household Survey (South Africa) |
| OHS➣Olympia High School (Washington) |
| OHS➣Open Heart Surgery |
| OHS➣Obesity-Hypoventilation Syndrome |
| OHS➣Odessa High School (various locations) |
| OHS➣Office of Highway Safety |
| OHS➣Orange High School |
| OHS➣Occupational Hygiene Services (various locations) |
| OHS➣Osceola High School (Kissimmee, Florida) |
| OHS➣Oconomowoc High School |
| OHS➣Oceanside High School |
| OHS➣Open Hypermedia System |
| OHS➣Office of Health and Safety (US CDC) |
| OHS➣Online High School (Stanford University) |
| OHS➣Oakdale High School (Oakdale, CA) |
| OHS➣Oakland High School (Oakland, CA) |
| OHS➣Ontario Historical Society (Canada) |
| OHS➣Ocular Histoplasmosis Syndrome |
| OHS➣Okemos High School (Michigan) |
| OHS➣Oxnard High School (Oxnard, CA) |
| OHS➣Owatonna High School (Owatonna, MN) |
| OHS➣Oakton High School (Vienna, VA) |
| OHS➣Orem High School |
| OHS➣Oviedo High School |
| OHS➣Ottumwa High School |
| OHS➣Open Hyperdocument System |
| OHS➣Ossining High School (Ossining, NY, USA) |
| OHS➣Ottawa Humane Society (Canada) |
| OHS➣Okeechobee High School (Florida) |
| OHS➣Oberlin High School (Oberlin, OH) |
| OHS➣Ontario Health Survey |
| OHS➣Oneida High School (Oneida, NY) |
| OHS➣On Hand Stock (inventory) |
| OHS➣Occipital Horn Syndrome |
| OHS➣Ochsner Health System |
| OHS➣Ozaukee Humane Society (est. 1977; Wisconsin Humane Society) |
| OHS➣Orrville High School |
| OHS➣Oceana High School |
| OHS➣Orofino High School (Idaho) |
| OHS➣Osbourn High School (Manassas, Virginia) |
| OHS➣Omron Healthcare Singapore |
| OHS➣Optimal Health Systems |
| OHS➣Olympian High School (Chula Vista, CA) |
| OHS➣Ohio Homeland Security (Columbus, OH) |
| OHS➣Ontario Health Study (Canada) |
| OHS➣Ottawa Horticultural Society |
| OHS➣Ovonic Hydrogen Systems (Energy Conversion Devices; Auburn Hills, MI) |
| OHS➣Ocoee High School (Florida) |
| OHS➣Operator Head Space |
| OHS➣Opelousas High School (Louisana) |
| OHS➣Overhydrated Hereditary Stomatocytosis |
| OHS➣Orestimba High School |
| OHS➣Over Head Squat (weightlifting) |
| OHS➣Order of the Holy Sepulchre (Equestrian Order of the Holy Sepulchre of Jerusalem, an order of knighthood of the Catholic church) |
| OHS➣Osseo High School (Osseo, Minnesota, USA) |
| OHS➣Order Handling System |
| OHS➣Oilfields High School (California) |
| OHS➣Oakfield High School (Oakfield, WI) |
| OHS➣Oakley High School |
| OHS➣Occupational Health Solutions Ltd (UK) |
| OHS➣Office of Hispanic Services |
| OHS➣Offerton High School (UK) |
| OHS➣Ornamental Horticultural Society |
| OHS➣Omega High School (Michigan) |
| OHS➣Orchard Hills Basketball League (Milford, CT) |
| OHS➣Oblates of the Holy Spirit (Christianity) |
| OHS➣Open Here Stupid |
| OHS➣One Hundredth Street (New York bus depot) |