This article shows the roster of all participating teams at the 2023 FIVB Volleyball Men's Nations League.
[3] Head coach: Marcelo Méndez The following is Brazil's roster in the 2023 Men's Nations League.
[9] Head coach: Andrea Giani The following is Germany's roster in the 2023 Men's Nations League.
[13] Head coach: Ferdinando De Giorgi The following is Japan's roster in the 2023 Men's Nations League.
[18] Head coach: Gheorghe Crețu The following is the United States roster in the 2023 Men's Nations League.