Iran claimed their second title of U21 World Championship by defeating Italy 3–2 in the final match.

[1] This will be the fourth time that Bahrain hosts the FIVB Boys' U21 World Championship having previously done so in 1987, 1997 and 2019.

[5] The slot allocation was setted as follow:[5] The draw for the pools composition was held on 31 March 2023 at the FIVB headquarters in Lausanne, Switzerland.

The hosts Bahrain and the top seven teams of the Men's U21 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.