Ein echter Wiener geht nicht unter (German; lit. 'A real Viennese does not go under'. Free translation: A real/proud Viennese never gives up) is a classic Austrian television series. It was produced by Österreichischer Rundfunk, Austrian Television, and ran for 24 episodes from 1975 to 1979. The script writer was Ernst Hinterberger; the series was based on his 1966 novel Das Salz der Erde (The Salt of the Earth). The producer was Hans Preiner, who initiated the project in his series Impulse (Impulses), which centered on development of new program formats and training of new, young directors.

Ein echter Wiener geht nicht unter starred popular Austrian actor Karl Merkatz as the main character, Edmund "Mundl" Sackbauer. Mundl lives in a typical Vienna Gemeindebau (a working-class housing estate) at Hasengasse, in Vienna's 10th municipal district (Favoriten). The series used Viennese dialect and became successful after an initial campaign against it by the Krone newspaper as too "common."