María Barreiro

María Belén Barreiro Mazali (born 8 December 1999) is a Uruguayan field hockey player, who plays as a defender.

Under–21
Barreiro made her debut for the Uruguay U–21 at the 2021 Pan American Junior Championship in Santiago. At the tournament she won a silver medal, as well as scoring the team's only goal.

Las Cimarronas
Barriero made her senior international debut for Las Cimarronas in 2018, during the FIH Series Open in Santiago.

She won her first medal with the national team in 2022, taking home bronze at the South American Games in Asunción.

In 2023 she was named in the squad for the Pan American Games in Santiago.