Kylian Mbappé Lottin was born on December 20, 1998, in Paris, France, to Wilfried Mbappé, a football coach of Cameroonian origin from Bondy, and his wife Fayza Lamari, a former handball player of Algerian descent. Named in honor of his father, who coached him at AS Bondy, played a key role in nurturing his early skills, while his mother provided unwavering support. Growing up in a sports-oriented family, Mbappé showed exceptional talent for football from a young age. His father, who coached him at AS Bondy, played a key role in nurturing his early skills, while his mother provided unwavering support. Growing up in a sports-oriented family, Mbappé showed exceptional talent for football from a young age, as well as Zinedine Zidane and Cristiano Ronaldo, dreaming of a career in professional football.

Mbappé began at AS Bondy, where his speed, dribbling, and natural ability quickly set him apart. At 11, he caught the attention of major clubs, including Real Madrid, who invited him to their youth academy. While impressed, he chose to join the Clairefontaine academy, France's prestigious youth development centre, to hone his skills. In 2013, Mbappé signed with AS Monaco's academy, marking a turning point in his career.

On December 2, 2015, Mbappé made his senior debut for Monaco at just 16 years and 347 days old, breaking Thierry Henry's record as the club's youngest goalscorer. He scored his first goal for Monaco in a 3-1 win against Troyes in February 2016. In the 2016-17 season, Mbappé exploded onto the scene, scoring 26 goals across all competitions, including key strikes in Monaco's UEFA Champions League semifinal run. His performances helped Monaco win the Ligue 1 title and reach the Champions League semifinals, earning him global recognition.