Carla Kristen Esparza (born October 10, 1987) is an American former professional mixed martial artist and wrestler who most recently competed in the women’s Strawweight division of the Ultimate Fighting Championship (UFC), in which she is the former two-time UFC Women's Strawweight Champion. Esparza was the first UFC Strawweight Champion, the first Invicta FC Strawweight Champion, and was generally considered the best Strawweight fighter in the world during both title reigns. She first earned the UFC championship by winning a 16-woman tournament that was televised on the reality series The Ultimate Fighter. She also competed in Bellator MMA's first women's tournament.