NH1

NH1, or NH-1, or similar, may refer to:
 * NH1 News, a New Hampshire based television and radio news network formerly aired on WBIN-TV and WNNH
 * Howard NH-1, a World War II instrument training aircraft
 * National Harbor Line (Route NH1), a WMATA bus line in Prince George's County, Maryland
 * National Highway 1 (Cambodia)
 * National Highway 1 (India)
 * New Hampshire's 1st congressional district