Wikipedia
HGG
HGG may refer to:
- Hackerspace Global Grid
- Haggerston railway station, in London
- Harlech Grits Group, a lithostratigraphic group
- Henderson Group, a British investment management company
- hhgregg, an American retailer
- The Hitchhiker's Guide to the Galaxy, a comedy science fiction series created by Douglas Adams
- Hyperbolic geometric graph