The 2019 Men's World Junior Squash Championships was the men's edition of the 2019 World Junior Squash Championships, which serves as the individual world Junior championship for squash players. The event took place in Kuala Lumpur in Malaysia from 30 July to 4 August 2019. Mostafa Asal of Egypt is the defending champion of this competition after defeating compatriot Marwan Tarek in the final of the 2018 edition.