The 2018 FIVB Volleyball Women's Nations League was the inaugural edition of the FIVB Volleyball Women's Nations League, a new annual international women's volleyball tournament contested by 16 national teams that replaced the former World Grand Prix in the international calendar. The competition was held between May and July 2018, and the final round took place in the Nanjing Olympic Sports Centre, Nanjing, China.

The FIVB Volleyball Women's Nations League is an international volleyball competition contested by the senior women's national teams of the members of the Fédération Internationale de Volleyball (FIVB), the sport's global governing body. The first tournament took place between May and July 2018, with the final taking place in Nanjing, China. United States won the inaugural edition, defeating Turkey in the final.