Gunnar Hägg (December 14, 1903 in Stockholm – May 28, 1986 in Uppsala)[1] was a Swedish chemist and crystallographer.
[3] He obtained his PhD in Stockholm in 1929 under Arne Westgren for the work X-ray studies on the binary systems of iron with nitrogen, phosphorus, arsenic, antimony and bismuth.
In 1937 he became professor of inorganic and general chemistry at Uppsala University.
Hägg's research dealt with nitrides, borides, carbides and hydrides of transition metals and determined their crystal structure with X-ray diffraction.
A room in Uppsala University's Ångstrom Laboratory is named after him.