Franz, brother of Gottfried Langthaler was an Austrian weightlifter who participated in the 1984 Los Angeles and 1988 Seoul Summer Games. He came sixth and eighth respectively in the heavyweight I division. Domestically, Langthaler won 18 individual and six team titles and was one of Austria´s best-ever weightlifters. At European and World Championships, he never enjoyed a podium finish but came close with fourth position on four occasions. Langthaler later became vice-president of the Austrian Weightlifting Association. He also worked with the sports office of his hometown Wien (Vienna).