Kornhauser is a German surname. Notable people with the name include:
Agata Kornhauser-Duda (born 1972), née Kornhauser, First Lady of Poland Aleksandra Kornhauser Frazer (1926-2020), Slovenian chemist Arthur Kornhauser (1896–1990), American industrial psychologist Eddie Kornhauser (1918–2006), Australian property developer Jakub Kornhauser (born 1984), Polish poet Julian Kornhauser (born 1946), Polish poet and literary critic