Internationally, Ludmila plays for Brazil and has made 50 appearances with the senior national team. Ludmila appeared in several major international tournaments, including the 2019 FIFA Women’s World Cup and the 2020 Tokyo Olympics, and has five goals for Brazil. In 2019, prior to the World Cup, Ludmila and Brazil participated in the SheBelieves Cup finishing as the runner-up in the tournament. In the 2020 Tokyo Olympics, during Brazil's second group stage match against the Netherlands, Ludmila entered as a halftime substitute, scoring Brazil's third goal 12 minutes later. Ludmila appeared in all of Brazil's 2020 Tokyo Olympic matches before the team's exit in the quarterfinals of the tournament.
