Luwawu-Cabarrot played for the junior French national basketball teams at the both the 2014 FIBA Europe Under-20 Championship, and the 2015 FIBA Europe Under-20 Championship. In 2015, he helped France to a semifinals appearance, while averaging 11.6 points and 4.9 rebounds per game. Luwawu-Cabarrot was a member of the French national basketball team that finished second in the 2020 Tokyo Olympics. In the gold medal match versus the United States men's basketball team, Luwawu-Cabarrot scored 11 points in the losing effort, earning a silver medal. .