2021 FIVB Volleyball Boys' U19 World Championship

The 2021 FIVB Volleyball Boys' U19 World Championship was the 17th edition of the FIVB Volleyball Boys' U19 World Championship, contested by the men's national teams under the age of 19 of the members of the FIVB, the sport's global governing body. The tournament was held in Iran from 24 August to 2 September 2021.

Italy were the defending champions, having won their second title in Tunisia.

Players must be born on or after 1 January 2003.

Qualification
A total of 20 teams will qualify for the final tournament. In addition to Iran who qualified automatically as hosts, the other 19 teams will qualify from five separate continental competitions.

* Japan, South Korea, Chinese Taipei, United States and Puerto Rico withdrew from the competition. Thailand entered by the 5th place at the Asian Volleyball Championship and the other teams entered by the world ranking.


 * 1.On 14 December 2020, AVC announced that the 2020 Asian Championship which was originally the AVC qualifier for the tournament was canceled due to COVID-19 pandemic and the top four teams of the 2018 Asian Championship which had not yet qualified to the tournament qualified as the AVC representatives.
 * 2.On 30 November 2020, NORCECA announced that the 2020 NORCECA Championship which was originally the NORCECA qualifier for the tournament was canceled due to COVID-19 pandemic and the top four teams of the NORCECA Ranking as of January 2020 qualified as the NORCECA representatives.

Pool standing procedure

 * 1) Number of matches won
 * 2) Match points
 * 3) Sets ratio
 * 4) Points ratio
 * 5) If the tie continues as per the point ratio between two teams, the priority will be given to the team which won the last match between them. When the tie in points ratio is between three or more teams, a new classification of these teams in the terms of points 1, 2 and 3 will be made taking into consideration only the matches in which they were opposed to each other.

Match won 3–0 or 3–1: 3 match points for the winner, 0 match points for the loser

Match won 3–2: 2 match points for the winner, 1 match point for the loser

Preliminary round

 * All times are Iran Daylight Time (UTC+04:30).

Final round

 * All times are Iran Daylight Time (UTC+04:30).

Awards

 * Most valuable player
 * 🇵🇱 Tytus Nowik
 * Best setter
 * 🇧🇬 Stoil Palev
 * Best outside spikers
 * 🇧🇬 Aleksandar Nikolov
 * 🇵🇱 Kamil Szymendera
 * Best middle blockers
 * Yousef Kazemi
 * 🇵🇱 Jakub Majchrzak
 * Best opposite spiker
 * 🇵🇱 Tytus Nowik
 * Best libero
 * 🇵🇱 Kuba Hawryluk

All round
Statistics leaders correct as of All round.