Mariela Campos Alvarado (born 7 October 1998) is a Costa Rican footballer who plays as a midfielder for Costa Rican Women's Premier Division club Saprissa FF and the Costa Rica women's national team.
Campos took part in the 2014 FIFA U-17 Women's World Cup with the Costa Rican U-17 team and made two appearances there.
She also appeared in 2018 CONCACAF Women's U-20 Championship, where she again received playing time in three games.
[1] Campos made her senior debut for the Costa Rican national team was on June 10, 2018, in a 4–0 friendly loss to Chile.
On 6 July 2023, Campos was called up to the 23-player squad to play the 2023 World Cup.