Pierre is eligible for the United States and Haiti, having been born and raised in the U.S. and of Haitian descent. In 2019, he played eight total matches for Haiti U17 in the 2019 CONCACAF U-17 Championship and 2019 FIFA U-17 World Cup. On January 8, 2020, he was called up for the first time to United States U20 for their January friendlies.