Frischmuth is a German surname. Notable people with the surname include:

Barbara Frischmuth (1941–2025), Austrian writer and poet Edith Hauer-Frischmuth (1913–2004), Austrian Righteous Among the Nations woman Gert Frischmuth (1932–2012), German choral conductor and music educator Johann Frischmuth (1619–1687), German orientalist

See also Frishmuth