The tournament was held in Brno and České Budějovice, Czech Republic from 23 June to 2 July 2017.

[4] The FIVB Sports Events Council revealed a proposal to streamline the number of teams participating in the Age Group World Championships.

[5] Teams were seeded in the first two positions of each pool following the serpentine system according to their FIVB U21 World Ranking as of January 2017.

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

All teams not seeded were drawn to take other available positions in the remaining lines, following the U21 World Ranking.