NH

NH may refer to

• National Hose Thread, a threaded connection standard used on hose couplings
• New Hampshire, a state within the United States of America
• Nh (digraph), an orthographic concept
• NH Hoteles, a Spanish-based hotel chain
• All Nippon Airways, an airline, formerly Nippon Helicopter
• National Highway, a road designation in many countries
• NetHack, a computer game
• New York, New Haven and Hartford Railroad
• Nishan-e-Haider, a Pakistani military award
• Nordsjælland Håndbold, a Danish handball team
• New Haven, a city within the State of Connecticut
• Nickel hydride, a type of rechargeable battery
• Interstellar nitrogen monohydride, the NH molecule detected in outer space
• No-hitter, a baseball term
• Noord-Holland, a province in Netherlands