The mixed martial arts organization is starting up a women's strawweight (115-pound) division, to add to the bantamweight (135-pound) weight class already on the books.
UFC president Dana White says Invicta FC, a women's promotion, is assigning the contracts of 11 of its fighters to the UFC to help stock the division.
The 11 Invicta fighters are: Carla Esparza, Claudia Gadelha, Felice Herrig, Joanne Calderwood, Tecia Torres, Rose Namajunas, Bec Hyatt, Emily Kagan, Alex Chambers, Julianna Lima, and Paige Van Zant.
An additional five fighters will be selected for Season 20 of "The Ultimate Fighter" via a tryout set to be held in 2014.
The UFC has eight men's weight classes, from flyweight (115 pounds) to heavyweight (205-265 pounds).
(Rowdy) Ronda Rousey is the current women's bantamweight title-holder.