Barbieri represented Brazil at under-20 level in the 2022 South American Under-20 Women's Football Championship and the 2022 FIFA U-20 Women's World Cup, winning the former. On 19 June of that year, prior to the U-20 World Cup, she was called up to the full side by manager Pia Sundhage for friendlies against Denmark and Sweden; she was an unused substitute in both matches.
