Salcia Landmann, born Salcia Passweg (Hebrew: זלציה לנדמן; 18 November 1911 – 16 May 2002), was a Jewish writer. She was born in Zhovkva, Galicia, and died in St. Gallen, Switzerland. She worked on preserving the Yiddish language, and she wrote the important work Der Jüdische Witz (Jewish Humor). She was one of the founders of the International PEN in Liechtenstein. She had one son and was married to philosopher Michael Landmann since 1939.