Weilenmann is a surname. Notable people with the surname include: Gottfried Weilenmann (cyclist, born 1894) (born 1894), Swiss cyclist Gottfried Weilenmann (cyclist, born 1920) (1920–2018), Swiss cyclist Johann Jakob Weilenmann (1819–1896), Swiss mountaineer and Alpine writer Leo Weilenmann (1922–1999), Swiss racing cyclist See also Weinmann Wileman