The 2018 FIFA U-20 Women's World Cup was the ninth edition of the FIFA U-20 Women's World Cup, the biennial international women's youth football championship contested by the under-20 national teams of the member associations of FIFA, since its inception in 2002 as the FIFA U-19 Women's World Championship.

The FIFA U-20 Women's World Cup is an international association football tournament, organized by FIFA, for national teams of women under the age of 20. The tournament is held in even-numbered years. It was first held in 2002 as the FIFA U-19 Women's World Championship with an upper age limit of 19. In 2006, the age limit was raised to the current 20. The event was renamed as a World Cup since the 2008 competition, making its name consistent with FIFA's other worldwide competitions for national teams.