Theo Maledon was born June 12, 2001 in Rouen, a city on the River Seine in northern France. Both of his parents, Sylvie and Claude, played organized basketball in France. And his sister, Lena, played college basketball in the United States for Ranger College and Southern Arkansas. As a youth, Theo began playing basketball with his local club Mesnil-Esnard in Seine-Maritime and then SPO Rouen. As a 14-year-old, Maledon earned a scholarship to join the National Institute of Sport, Expertise, and Performance (INSEP), a sports institute in Paris. He played two seasons for INSEP's NM1 and U-18 teams. In April of 2017, Maledon played and scored 15 points in the Jordan Brand Classic Global Showcase at the Barclays Center in Brooklyn. The young point guard signed his first professional contract in August, 2018 with ASVEL, after playing for their junior team the prior season. Maledon has played for the U-16, U-17 and Senior French national teams.