Festinger is a surname. Notable people with the surname include:
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Richard Festinger (born 1948), American composer
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Leon Festinger
Leon Festinger (8 May 1919 – 11 February 1989) was an American social psychologist who originated the theory of cognitive dissonance and social comparison theory. The rejection of the previously dominant behaviorist view of social psychology ...
(1919–1989), American social psychologist, responsible for the development of the theory of cognitive dissonance
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German-language surnames
German toponymic surnames
Jewish surnames