Ailín Luciana Pérez (born October 5, 1994) is an Argentine professional mixed martial artist who currently competes in the women's Bantamweight division of the Ultimate Fighting Championship (UFC). As of November 5, 2024, she is #13 in the UFC women's bantamweight rankings. Pérez started in martial arts at the age of 11 in Zárate, with kung fu and sanda, and at the age of 20 she decided to move to Buenos Aires and do some Brazilian jiu jitsu (BJJ), to get more into MMA. Finally, she turned professional in 2018.