Grengg
Grengg is the family name of the following people:
- Karl Grengg (1851-1914), Austrian opera singer
- Roman Grengg (1884–1972), Austrian geologist
- Maria Grengg (1888–1963), Austrian author
- Hermann Grengg (1891–1978), Austrian engineer, rector of the TH Graz
- Alfred Grengg (1920–2008), Austrian educator and sports official
