Mariana Arceo (born 25 April 1994) is a Mexican modern pentathlete.

She represented Mexico at the 2019 Pan American Games in Lima, Peru and she won the gold medal in the women's individual event.

[2][3] She represented Mexico at the 2020 Summer Olympics in Tokyo, Japan.

At the 2019 World Modern Pentathlon Championships in Budapest, Hungary, she won, with Mayan Oliver, the gold medal in the women's relay event.

This biographical article related to modern pentathlon in Mexico is a stub.