| Acronym | Definition |
|---|
| NH | New Hampshire (US postal abbreviation) |
| NH | New Haven |
| NH | Nursing Home |
| NH | National Highway (Australia, India) |
| NH | Not Here |
| NH | Nippon Ham (Japan) |
| NH | Nathaniel Hawthorne (author) |
| NH | Naval Hospital |
| NH | Northern Hemisphere |
| NH | New Hire |
| NH | Natural Horsemanship (horse trainers; Orlando, FL) |
| NH | Natural Heritage Program (Virginia) |
| NH | Notting Hill |
| NH | New Harmony (Indiana) |
| NH | Nordic Hardware |
| NH | Nordic Hardware (computer discussion forum in Sweden) |
| NH | Null Hypothesis |
| NH | National Hose (thread) |
| NH | Natural Harmonic (music) |
| NH | Number of Hits (weapons planning) |
| NH | New Hebrides |
| NH | Never Hinged (philatelic term; mint gum stamp) |
| NH | Nice Hand |
| NH | North Harbor |
| NH | NetHack |
| NH | Number Holder (US SSA) |
| NH | No Height (track and field) |
| NH | No Hole |
| NH | Naval Home (US Navy) |
| NH | New Hat |
| NH | Next Hop (networking) |
| NH | Nobody Home (delivery term) |
| NH | Neighborhood History |
| NH | No Hacks (multiplayer gaming) |
| NH | North Hills School District (Pennsylvania) |
| NH | Nonhygroscopic |
| NH | Nerf Herder (band) |
| NH | Nerd Herd (gaming clan) |
| NH | National Host |
| NH | Nishan-E-Haider (highest gallantry award of Pakistan Army) |
| NH | Northern Highlands Regional High School (Allendale, New Jersey) |
| NH | Nuclear-Hardened |
| NH | Natural Humidity |
| NH | Nation of Hope (gaming) |
| NH | NeoHacks (gaming website) |
| NH | Nobilis Homo (Latin: Nobleman) |
| NH | Nota de Honorários (Invoice, Portugal) |
| NH | Neoplastic Hepatocyte |
| NH | All Nippon Airways Co Japan (IATA airline code) |
| NH | Non-Busy Hour |
| NH | Nutritional Herbologist |
| NH | Hidratacion Normal (Spanish: Normal Hydration) |