Marion Thénault (born April 9, 2000) is a Canadian freestyle skier, who competes in the aerials discipline. At the 2022 Winter Olympics, Thénault was a part of Canada's bronze medal winning Mixed team aerials.
She was born in Sherbrooke, Quebec.
She competed at the 2021 World Championships, where she placed sixth in the women's aerials.
On January 24, 2022, Thénault was named to Canada's 2022 Olympic team.