Georg Haas (4 April 1886 – 6 December 1971) was a German medical doctor was born in Nuremberg, Germany.
He wrote his doctoral thesis while attending the institute of the famous pathologist Ludwig Aschoff.
Haas performed the first human hemodialysis in the history of medicine in 1924 in the town of Giessen, Germany.
Haas was able to develop a dialyzer consisting of U-shaped collodion tubes immersed in a dialysate bath placed in a glass cylinder.
Because of lack of support by the medical community, Haas was forced to discontinue his promising work.