The 2015 FIVB Volleyball Women's U20 World Championship was the eighteenth edition of the FIVB Volleyball Women's U20 World Championship, which was hosted by Puerto Rico from 11 to 19 September 2015 in the cities of Caguas, Gurabo, Juncos and Maunabo.

Dominican Republic defeated Brazil 3-2 in the final to claim their first title.

[1] This marked the first world title for Dominican Republic at any age group.

[2] The FIVB Sports Events Council confirmed a proposal to streamline the number of teams participating in the Age Group World Championships on 14 December 2013.

[3] The drawing of lots was held in Carolina, Puerto Rico on 1 July 2015.