The 2018 FIVB Men's Volleyball World Championship featured 24 teams. Three places were allocated to the hosts, Italy and Bulgaria and the titleholder, Poland. The remaining 21 places were determined by a qualification process, in which entrants from among the other teams from the five FIVB confederations competed.
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The distribution by confederation for the 2018 FIVB Men's Volleyball World Championship was:
Note: CEV total includes +3 for Italy as co-hosts, Bulgaria as co-hosts, and Poland as reigning champions.
The draw for the second round was held on 19 March 2017, at the Dusit Princess Srinakarin Hotel in Bangkok, Thailand.
Winners qualified for Play-offs main round
Winners qualified for 2018 World Championship<br>Losers qualified for Play-offs second round
Winner qualified for 2018 World Championship
Winners qualified for Play-offs final
Winners qualified for 2018 World Championship
Winners qualified for Play-offs main round
Winners qualified for 2018 World Championship<br>Losers qualified for Play-offs second round
Winners qualified for 2018 World Championship