Hugo O. Engelmann

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Hugo O. Engelmann
Born	(1917-09-11)September 11, 1917 Vienna, Austria
Died	February 2, 2002(2002-02-02) (aged 84)
Alma mater	University of Wisconsin–Madison
Scientific career
Fields	Sociology Anthropology Systems theory
Institutions	Northern Illinois University University of Wisconsin–Milwaukee Michigan State University

Hugo Otto Engelmann (September 11, 1917 – February 2, 2002) was an American sociologist, anthropologist and general systems theorist. Throughout his work he emphasized the significance of history.