Wilhelm Josef "Willy" Schaeffler (13 December 1915 – 9 April 1988) was a German-American skiing champion, winning coach, and ski resort developer. In skiing, he is best known to the public for his intensive training programs that led the U.S. Ski Team to gold and bronze medals at the 1972 Olympics and his success at the University of Denver. In development circles, he is known for his role in the development of Vail and Whistler Blackcomb, and his efforts to build Mineral King and Independence Lake in California.