NH

NH or Nh may refer to

Businesses and organizations

 * All Nippon Airways (IATA code NH), formerly Nippon Helicopter, Japan's largest airline
 * National Agricultural Cooperative Federation, a South Korean cooperative federation also known by its Korean initials NH (Nonghyup)
 * New York, New Haven and Hartford Railroad
 * NH (media company), formerly Radio & Televisie Noord-Holland, a Dutch broadcasting company
 * NH Hotel Group, formerly Navarra Hoteles, a Spanish-based hotel chain
 * NH Media ("Nam Hee"), a South Korean entertainment agency
 * Nordsjælland Håndbold, a Danish handball team

Places

 * New Hampshire, US (postal abbreviation NH)
 * New Haven, a city in Connecticut, United States
 * Noroton Heights, Connecticut, a town in Connecticut, United States
 * North Holland, a province in the Netherlands
 * Nowa Huta, a district of Kraków, Poland

In science and technology

 * Nh (digraph), an orthographic concept
 * National Hose Thread, a threaded connection standard used on hose couplings
 * Nickel hydride, a type of rechargeable battery
 * Nihonium, symbol Nh, a chemical element
 * NH, molecular formula for imidogen

Other uses

 * National Highway, a road designation in many countries
 * National Highways, an agency that manages England's motorways
 * NetHack, a computer game
 * Nishan-e-Haider, a Pakistani military award
 * Nishan-e-Hamidiya, an Indian knighthood awarded by the Royal House of Rampur
 * No-hitter, a baseball term
 * Niall Horan
 * Nobile (aristocracy), an Italian hereditary title abbreviated N.H. (Nobile Homine) for men