Ehrenfest is a surname. Notable people with the surname include: Paul Ehrenfest (1880-1933), Austrian physicist and mathematician Ehrenfest equations Ehrenfest model Ehrenfest paradox Ehrenfest theorem 32796 Ehrenfest Tatjana Ehrenfest-Afanassjewa (1876-1964), Ukrainian-Russian mathematician, wife of Paul Tanja van Aardenne-Ehrenfest (1905–1984), Austrian Dutch mathematician, daughter of Paul See also Ehrenfeld (disambiguation) Ehrenfels (disambiguation) Ehrenbaum Ehrenberg (disambiguation) Ehrenburg (disambiguation) Ehrenhaft Ehrenpreis Ehrenstein Ehrenthal German-language surnames