This article shows the roster of all participating teams at the 2018 FIVB Women's Volleyball 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.
[4][5] Head coach: José Roberto Guimarães A preliminary squad with 26 names was announced on 24 April 2018.
[18][19] Head coach: Cha Hae-won A preliminary squad with 26 names was announced on 26 April 2018.