Amanda Serrano (born October 9, 1988) is a Puerto Rican professional boxer, mixed martial artist and professional wrestler. As a boxer, she is the unified featherweight world champion, having held the WBO title since 2019; the WBC title since February 2021; and the IBO title since March 2021. She is the only female, and Puerto Rican, to win world titles in more than four weight classes, and holds the Guinness World Record for the most boxing world championships won in different weight-classes by a female, having held 9 major world titles across seven different weight classes. Her older sister, Cindy, is also a professional boxer. The pair became the first sisters to hold world titles from major sanctioning bodies at the same time after Cindy won the WBO featherweight title in 2016.