Holly Holm (born October 17, 1981) is a mixed martial artist who competes in the Ultimate Fighting Championship (UFC) bantamweight division. She is the current UFC Bantamweight Champion. Holm is also a former professional boxer and kickboxer. She was a multiple-time world champion in boxing, defending her titles 18 times in three weight classes, and was a two-time Ring magazine fighter of the year (2005, 2006).
Her most notable win in mixed martial arts (MMA) occurred at UFC 193, in front of a record-breaking crowd for a UFC event (56,214 people) in Melbourne, when she captured the bantamweight title and gave Ronda Rousey her first loss in the sport. The fight is considered one of the biggest upsets in the history of sports. Holm is the first person to win championships in both boxing and mixed martial arts. She is the consensus #1 female bantamweight fighter in the world. Fight Matrix also lists her as the #1 pound-for-pound female fighter in the world, while Sherdog lists her at #2, and ESPN at #3. Holm is the only female fighter to be listed in Sports Illustrated's mixed gender pound-for-pound ranking at #10. UFC fighter Jon Jones has called Holm the greatest female athlete in the history of combat sports. Outside of MMA, she appears in the 2016 feature film Fight Valley.