William D. "Bill" LaRochelle (12 July 1926 – 29 April 2011) was a Canadian sprinter. He competed in the men's 4 × 400 metres relay at the 1948 Summer Olympics. LaRochelle played football for the Ottawa Rough Riders, Montreal Alouettes, Winnipeg Blue Bombers and Calgary Stampeders from 1949 to 1953.