[1] The competition was held between May and July 2019, and the final round took place in the Credit Union 1 Arena, Chicago, United States.

Following the results of the 2018 Nations League and 2018 Challenger Cup, South Korea were replaced by debutants Portugal in this edition.

The semifinals winners advanced to compete for the Volleyball Nations League title.

[1] China Germany Iran Italy Argentina Portugal Canada Bulgaria Poland United States Brazil Australia Serbia France Russia Japan China Bulgaria Poland France Russia Italy United States Portugal Japan Argentina Iran Brazil Canada Australia Germany Serbia Portugal Brazil China Serbia Bulgaria Japan Italy Australia Iran Canada Poland Russia France Argentina United States Germany United States Japan China Canada Italy Argentina Serbia Poland Iran France Portugal Australia Brazil Bulgaria Germany Russia Australia Argentina China Russia Brazil Italy Canada France Bulgaria Iran Serbia United States Germany Japan Portugal Poland United States (Hosts) Russia (preliminary round 3rd) France (preliminary round 4th) Brazil (preliminary round 1st) Iran (preliminary round 2nd) Poland (preliminary round 5th) The list of host cities and venues was announced on 26 March 2019.

[5] To determine the pools standings, the following criteria is applied:[6] The 16 national teams involved in the tournament were required to register a squad of 25 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.