The 2019 FIVB Volleyball Men's Nations League was the second edition of the FIVB Volleyball Men's Nations League, an annual international men's volleyball tournament contested by 16 national teams. The competition will be held between May and July 2019 and the final round will take place in the Credit Union 1 Arena, Chicago, United States. This will be the first edition of the World League or the Nations League to have the Final Round hosted in North America. Following the results of the 2018 Nations League and 2018 Challenger Cup, South Korea were replaced by debutants Portugal in this edition. Portugal were the last placed challenger team after the preliminary round and will be replaced by Challenger Cup winners Slovenia in the 2020 edition. Russia successfully defended its title, defeating hosts, the United States, in the final.