Kunlavut Vitidsarn is a Thai badminton player. He is the current men's singles World Champion as he won the gold medal at the 2023 World Championships. He was also three-times World Junior champion, winning in 2017, 2018 and 2019.

The BWF World Junior Championships is a tournament organized by the Badminton World Federation (BWF) to crown the best junior badminton players (under-19) in the world. The championships is held annually and consists of two separate competitions: a mixed team championships followed by an individual championships.