| Acronym | Definition |
|---|
| NHN➣Noord-Holland Noord (Dutch: North North-Holland) |
| NHN➣New Hampton (Amtrak station code; New Hampton, NH) |
| NHN➣Neighbors Helping Neighbors |
| NHN➣Natural Horse Network (Longmont, CO) |
| NHN➣NAVAIR Headquarters Network |
| NHN➣Nashua North (Nashua, New Hampshire) |
| NHN➣Not Here Now |
| NHN➣Nth Differential Height Maneuver |