HGG
HGG stands for:
- Hackerspace Global Grid , a project with the aim of building a distributed sensor and communication network.
- Hans-Grüninger-Gymnasium Markgröningen , a high school founded in 1966 in Markgröningen in the Ludwigsburg district.
- Heilig-Geist-Gymnasium (Würselen) , a gymnasium based in the Broich district of Würselen in the Aachen region.