This article shows the roster of all participating teams at the 2018 FIVB Volleyball Men's Nations League. The 16 national teams involved in the tournament were required to register a squad of 21 players, which every week's 14-player roster must be selected from. Each country must declare its 14-player roster two days before the start of each week's round-robin competition.
The following is the Argentine roster in the 2018 Men's Nations League.
Head coach: Julio Velasco
The following is the Australian roster in the 2018 Men's Nations League.
Head coach: Mark Lebedew
The following is the Brazilian roster in the 2018 Men's Nations League.
Head coach: Renan Dal Zotto
The following is the Bulgarian roster in the 2018 Men's Nations League.
Head coach: Plamen Konstantinov
The following is the Canadian roster in the 2018 Men's Nations League.
Head coach: Stéphane Antiga
The following is the Chinese roster in the 2018 Men's Nations League.
Head coach: Raúl Lozano
The following is the French roster in the 2018 Men's Nations League.
Head coach: Laurent Tillie
The following is the German roster in the 2018 Men's Nations League.
Head coach: Andrea Giani
The following is the Iranian roster in the 2018 Men's Nations League.
Head coach: Igor Kolaković
The following is the Italian roster in the 2018 Men's Nations League.
Head coach: Gianlorenzo Blengini
The following is the Japanese roster in the 2018 Men's Nations League.
Head coach: Yuichi Nakagaichi
The following is the Polish roster in the 2018 Men's Nations League.
Head coach: Vital Heynen
The following is the Russian roster in the 2018 Men's Nations League.
Head coach: Sergey Shlyapnikov
The following is the Serbian roster in the 2018 Men's Nations League.
Head coach: Nikola Grbić
The following is the Korean roster in the 2018 Men's Nations League.
Head coach: Kim Ho-chul
The following is the American roster in the 2018 Men's Nations League.