| Acronym | Definition |
|---|
| NHS | National Health Service (UK) |
| NHS | National Historic Site |
| NHS | National Honor Society |
| NHS | National Highway System |
| NHS | Neighborhood Housing Services |
| NHS | Nursing and Health Studies |
| NHS | Niagara Health System (Canada) |
| NHS | Nurses’ Health Study |
| NHS | N-Hydroxysuccinimide |
| NHS | North High School (USA) |
| NHS | Northridge High School (USA) |
| NHS | Northern High School (Owings, Maryland) |
| NHS | National Hardware Show |
| NHS | Needham High School (Needham, MA) |
| NHS | Northwood High School (various locations) |
| NHS | Next Hop Server |
| NHS | Newington High School |
| NHS | Nashua High School (Nashua, NH, USA) |
| NHS | Napa High School (California) |
| NHS | Niceville High School |
| NHS | Newton High School (Kansas) |
| NHS | Nance-Horan Syndrome |
| NHS | Northside High School (USA) |
| NHS | Newport High School (Bellevue, Washington) |
| NHS | Northview High School (Grand Rapids, Michigan) |
| NHS | Northeast High School (Zachary, Louisiana) |
| NHS | Nottingham High School (Nottingham, England) |
| NHS | Norwalk High School (various locations) |
| NHS | Northwestern High School (Hyattsville, Maryland) |
| NHS | Naples High School (Naples, Florida, USA) |
| NHS | Noblesville High School (Indiana) |
| NHS | Newtown High School (Newtown, CT) |
| NHS | Norman High School (Oklahoma) |
| NHS | Newnan High School (Georgia) |
| NHS | Norcross High School (Norcross, GA) |
| NHS | Newport Historical Society |
| NHS | Naugatuck High School (Connecticut) |
| NHS | Newberry High School (Newberry, MI) |
| NHS | Northville High School |
| NHS | Norwell High School |
| NHS | Nikon Historical Society |
| NHS | Novato High School (Novato, CA, USA) |
| NHS | Naugatuck High School (Naugatuck, CT) |
| NHS | Northeastern High School |
| NHS | Neshaminy High School |
| NHS | Nutley High School (Nutley, NJ, USA) |
| NHS | Nevada Historical Society (Reno, NV) |
| NHS | Nepean High School (Ottawa, Canada) |
| NHS | Nimitz High School (Irving, TX) |
| NHS | Nonnewaug High School (Connecticut) |
| NHS | Newmarket High School (Canada) |
| NHS | Normandy High School (Parma, Ohio) |
| NHS | National Handicapped Sports |
| NHS | Noarlunga Health Service (Adelaide,South Australia hospital) |
| NHS | Norwich Historical Society |
| NHS | Nitro High School (West Virginia) |
| NHS | National Humane Society |
| NHS | Newfield High School (Selden, NY) |
| NHS | Notley High School (UK) |
| NHS | Nanuet High School (Nanuet, NY) |
| NHS | Navarro High School (Geronimo, TX, USA) |
| NHS | Neodesha High School |
| NHS | New Hampshire Tracking Station (AFSCN) |
| NHS | Naval History Symposium |
| NHS | Nowata High School |
| NHS | Natural Human Serum |
| NHS | Non-Hydrosoluble |