Louis Dufour Jr. (26 July 1901 – May 1960) was a Swiss ice hockey player who competed in the 1920 Summer Olympics and in the 1928 Winter Olympics. In 1920 he participated with the Swiss ice hockey team in the Summer Olympics ice hockey tournament along with his father, Louis Dufour Sr. Four years later he was also a member of the Swiss team in the first Winter Olympics tournament, though he did not play any games. At the 1928 Olympics he won the bronze medal with the Swiss ice hockey team.