Maddie Mastro (born February 22, 2000) is an American professional snowboarder of Italian descent, specializing in half pipe.

She won a bronze medal in the superpipe competition at the 2018 X Games in Aspen.

[1] Mastro was named to the US Team for the 2018 Winter Olympics, placing 12th.

[3] In her second Olympics in the 2022 Beijing Winter Olympics women's halfpipe, Mastro placed thirteenth, the second highest American, just missing qualifying for the final round (top twelve qualify).

This biographical article related to snowboarding in the United States is a stub.