On 3 December 2018, Frappart was appointed to officiate in the 2019 FIFA Women's World Cup in France. After the conclusion of the round of 16, it was announced that Frappart had been selected as one of 11 officials that would be retained for the remainder of the tournament. Frappart would go on to be appointed to referee the final of the tournament which was contested on 7 July 2019 between the United States and the Netherlands.