Ronda Jean Rousey (/ˈraʊzi/; born February 1, 1987) is an American professional wrestler, actress, author, mixed martial artist and judoka. She is currently signed to WWE, performing on the Raw brand, where she is the current Raw Women's Champion in her first reign. Her longstanding nickname, "Rowdy", was inherited from late professional wrestler Roddy Piper.
Rousey began her professional career as a mixed martial artist in 2010, after becoming the first American woman to earn an Olympic medal in judo, by winning bronze at the 2008 Summer Olympics. After a string of successful bouts in both King of the Cage and Strikeforce, which included a reign as the last ever Strikeforce Women's Bantamweight Champion, Rousey signed with the Ultimate Fighting Championship (UFC) in 2012. In UFC, Rousey enjoyed a two and a half year undefeated streak, during which she became the first female champion in the promotion's history, and holds the record as the longest ever reigning UFC Women's Bantamweight Champion. Rousey has also gained several plaudits for her explosive and dominant fighting style, characterized by first-round knockouts and trademark armbar submission hold. She later became the first female fighter to be inducted into the UFC Hall of Fame.
In 2018, Rousey began a career in professional wrestling, signing a contract with WWE. She made her in-ring debut at WrestleMania 34, and won the Raw Women's Championship, her first WWE and professional wrestling title, at SummerSlam 2018.
Rousey has also enjoyed success as an actress and author, appearing in the films The Expendables 3 (2014), Furious 7 (2015), and Mile 22 (2018), and releasing her autobiography My Fight / Your Fight in 2015.
Rousey has been credited for breaking down several hurdles regarding female mixed martial arts, as well as challenging barriers regarding body image and female conformity. She has been regarded as a symbol of female empowerment, and has been praised for her involvement in the polarizing female mixed martial arts industry, in which she became one of the highest-pay-per-view draws in the world. Rousey was described by Fox Sports as "one of the defining athletes of the 21st century."