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The 2023 FIVB Volleyball Boys' U19 World Championship was the 18th edition of the FIVB Volleyball Boys' U19 World Championship, the biennial international youth volleyball championship contested by the men's national teams under the age of 19 of the members associations of the Fédération Internationale de Volleyball (FIVB), the sport's global governing body. It was held in San Juan, Argentina from 2 to 13 August 2023.
On 2 June 2022, FIVB opened the bidding process for member associations whose countries were interested in hosting one of the four Age Group World Championships in 2023 (i.e., U19 Boys' and Girls' World Championships and U21 Men's and Women's World Championships). The expression of interest of the member associations had to be submitted to FIVB by 29 July 2022, 18:00 CEST (UTC+2).
FIVB announced the hosts for its four Age Group World Championship on 24 January 2023, with Argentina being selected to host the 2023 Boys' U19 World Championship. Previously, Argentina had been announced as host country by the Argentine Volleyball Federation on 20 December 2022. This will be the third time that Argentina hosts the FIVB Boys' U19 World Championship having previously done so in 2011 and 2015.
Qualification
A total of 20 national teams qualified for the final tournament. In addition to Argentina who qualified automatically as hosts, the other 19 teams qualified through five separate continental competitions which had to be completed by 31 December 2022 at the latest.
The draw for the pools composition was held on 31 March 2023 at the FIVB headquarters in Lausanne, Switzerland. The 20 teams were split into four pools of five. The hosts Argentina and the top seven teams of the Boys' U19 FIVB World Ranking in force at that time (as of 24 October 2022) were seeded in the first two positions of each pool following the serpentine system. FIVB reserved the right to seed the host team as head of pool A regardless of their position in the World Ranking. The remaining 12 teams were divided into three pots of four, according to their position in the same Boys' U19 FIVB World Ranking, in order to be drawn to complete the following three positions in each pool.
Boys' U19 FIVB World Ranking of each team as of 24 October 2022 are shown in brackets, except the hosts Argentina who ranked 4th.
Twenty teams are divided into 4 pools of five in round-robin system. The best four teams from each pool will qualify for the playoffs, while the rest will participate in the classification for 17th to 20th place.