| Acronym | Definition |
|---|
| NHH➣Nemzeti Hírközlési Hatóság (Hungarian: National Communications Authority) |
| NHH➣Norges Handelshøyskole (Norwegian School of Economics and Business Administration) |
| NHH➣New Hampshire Hospital (Concord, NH) |
| NHH➣Non Half Hourly (electricity metering) |
| NHH➣National Hospitality Holdings LLC |
| NHH➣Notting Hill Housing (UK) |
| NHH➣North Hills Hospital (Texas) |
| NHH➣New Hope Housing, Inc. (est. 1978; Virginia) |
| NHH➣Nógrád Hiphop (Nograd, Hungary) |