World Youth Table Tennis Championships-2021 is the next, 18th in a row from the annual table tennis competitions among young men. This year, following the reform of the International Table Tennis Federation, the tournament was divided into two categories: juniors under 19 (U19) and cadets under 15 (U15). The tournament will be hosted by the International Table Tennis Federation (ITTF) from 2 to 8 December 2021 in Vila Nova de Gaia, Portugal.