Ducharme has also been involved with Hockey Canada, first assisting on Quebec in the 2011 World Under-17 Hockey Challenge, and as an assistant coach for the Canada Under-18 National Team at the 2013 Ivan Hlinka Memorial Tournament. Ducharme served as the head coach for Canada during the 2017 World Junior Ice Hockey Championships, leading the team to a silver medal, and the 2018 World Junior Ice Hockey Championships, leading them to gold.