Hans H. Joos (31 December 1926, Stuttgart[1] – 18 November 2010, Hamburg) was a German theoretical physicist.
Joos studied at the University of Tübingen, where he was mentored by Gert Molière (1909–1964).
After graduation, Joos worked in São Paulo and at the University of Hamburg, where he received his doctorate (Promotion) in 1961.
[1] As a postdoc he worked in at the Institute for Advanced Study in Princeton (for the academic year 1961–1962),[4] at the University of Minnesota, and at CERN.
[5] From 1963 until his retirement, he was a member of the scientific research team at Germany's national research centre Deutsches Elektronen-Synchrotron (DESY) in Hamburg and was for some years the head of DESY's theory group.