Born February 12, 2000 on Reunion Island, Harisson Marcelin joined AJ Auxerre in 2016. A French youth international from U17 to U20, he began his professional career on August 17, 2018 with Auxerre in Ligue 2. After 25 meetings matches played for Auxerre, he joined AS Monaco on January 30, 2020 on a five season deal.