Karen Macarena Roco Aceituno (born 7 October 1986) is a Chilean canoeist.

She is commonly known in her country to compete alongside María José Mailliard, with whom she has been interviewed or referenced multiple times.

[2] With the goal to improve her skills, the director decided to send her to a sports workshop dedicated to canoeing when still she didn't know how to swim.

[2] On 29 July 2019, Roco algonside María José Mailliard obtained a silver medal in the 2019 Pan American Games.

[5][6] On 18 January 2021, Roco was honored in her hometown Constitución by the mayor of the city and Cecilia Pérez, then minister of Sport of the second government of Sebastián Piñera (2018−2022).