Holly Holm is an American mixed martial artist. She competes in the Ultimate Fighting Championship, where she is a former Women's Bantamweight Champion. Also a former professional boxer, Holm was a multiple-time world champion, defending her titles 18 times in three weight classes, and a two-time Ring magazine fighter of the year. She is ranked by BoxRec as the 12th greatest female professional boxer of all time, pound for pound.

UFC 193: Rousey vs. Holm was a mixed martial arts event held on 14 November 2015, at Etihad Stadium in Melbourne, Australia. It was the most attended UFC event in the history of the company at the time, with 56,214 people filling the stadium. Although Ronda Rousey was heavily favored to defeat Holly Holm, Holm gave Rousey her first career defeat.