Born in Arpajon on 23 July 2007, Quentin Ndjantou began playing in his hometown in 2013 before continuing his development at Paris FC a year later. After a spell at US Villejuif, he joined the Paris Saint-Germain academy in 2020.
He quickly proved himself with the U19s, winning the league title in 2024 and 2025. During his second title-winning season, he was also named Titi d’Or. His performances earned him his first professional contract with the capital club on 28 July 2025. Two months later, he made his professional debut against AJ Auxerre, before discovering the Champions League a few days later against Barcelona.
He therefore played a part in the second Champions League title won by Luis Enrique’s side and also added the first Ligue 1 title of his career to his honours.