Charles Louis Pierre Marion (14 January 1887 – 16 November 1944) was a French horse rider who competed in the 1928 Summer Olympics and in the 1932 Summer Olympics. In 1928 he and his horse Linon won the silver medal in the individual dressage competition. Four years later he and his horse Linon won the silver medal in the individual dressage competition again. They were also part of the French dressage team which won the gold medal in the team dressage event.