The 2015 FIVB Volleyball Men's U23 World Championship was held in Dubai, United Arab Emirates, from 24 to 31 August 2015.

The semifinals will feature the top two teams from each pool.

The FIVB Sports Events Council confirmed a proposal to streamline the number of teams participating in the Age Group World Championships on 14 December 2013.

[2] Teams were seeded following the Serpentine system according to their FIVB U21 World Ranking as of December 2014.

[4] FIVB reserved the right to seed the hosts as head of pool A regardless of the U21 World Ranking.