Alexandra Duckworth (born November 11, 1987) is a Canadian snowboarder. She competes primarily in half-pipe and represented Canada in this event at the 2014 Winter Olympics in Sochi.
She officially retired from competitive snowboarding on December 1, 2015. Duckworth has been working as a philanthropist. Her paternal grandmother is noted pacifist, feminist and social and community activist, Muriel Duckworth.