Ronda Jean Rousey is an American professional wrestler, actress, writer, and former judoka and mixed martial artist. She is known for her time in Ultimate Fighting Championship (UFC) and WWE. She received permission from professional wrestler Roddy Piper to use his "Rowdy" nickname.
She was the first American woman to win an Olympic medal in judo by winning bronze at the 2008 Summer Olympics. Rousey began her mixed martial arts (MMA) career with King of the Cage in 2011. She soon joined Strikeforce, becoming their last Women's Bantamweight Champion until its acquisition by UFC. Rousey was part of the company's first-ever female fight at UFC 157, was their inaugural Women's Bantamweight Champion, and held the record for most UFC title defenses (6) by a female, until being surpassed by Valentina Shevchenko in 2022. Rousey retired from MMA in 2016 and was the first female fighter inducted into the UFC Hall of Fame in 2018.
Rousey began a career in professional wrestling in 2018, signing with WWE, and debuted at WrestleMania 34. She won the Raw Women's Championship at that year's SummerSlam, and headlined WWE's only all-women's pay-per-view Evolution, in which she defended the title. Rousey lost the title in the first-ever women's WrestleMania main event at WrestleMania 35. Rousey returned at the 2022 Royal Rumble, winning the women's Royal Rumble match. That year, she would win the SmackDown Women's Championship twice, making her an overall three-time women's world champion in WWE. She became the eighth Women's Triple Crown Champion when she won the WWE Women's Tag Team Championship with Shayna Baszler. Rousey and Baszler also unified the WWE and NXT Women's Tag Team Championships.
Rousey is the only woman to be the champion in both the UFC and WWE as well as the only woman to headline a pay-per-view event in both companies. She was voted the best female athlete of all time in a 2015 ESPN fan poll, and Fox Sports described her as "one of the defining athletes of the 21st century." Rousey has also appeared in films, including The Expendables 3 (2014), Furious 7 (2015), and Mile 22 (2018), and autobiography My Fight / Your Fight in 2015.