Hans Robert Müller (26 October 1911 in Graz – 25 March 1999 in Wolfenbüttel) was an Austrian mathematician, professor and director of mathematical institutes at two universities.
In 1941 he was drafted into the Wehrmacht (reaching the rank of Unteroffizier), became a prisoner of war and was released in September 1945.
From 1956 until 1963 he was professor at Technische Universität Berlin where he was director of the institute of geometry.
[1] He was mainly concerned with geometrical studies of kinematics, in particular in relation to the Erlangen program and the works of Wilhelm Blaschke.
Some of his doctoral students were Reinhold Heinemann, Josef Hoschek, Heinz Linder, Klaus Meyer, Werner Pelzer.