Mariya Koroleva (born April 10, 1990) is an American synchronized swimmer. After emigrating to the United States as a child, Koroleva began participating in synchronized swimming events, and continued to compete after matriculating at Stanford University. She was a member of teams that won silver medals in the duet and team competitions at the 2011 Pan American Games in Guadalajara, Mexico. Together with teammate Mary Killman, Koroleva qualified for the 2012 Summer Olympics in London in the duet event.
Mariya Koroleva was born on April 10, 1990 in Yaroslavl, Russia to Svetlana and Nikolay Korolev and later emigrated with her family to the United States, settling in Concord, California. There, she began to compete in national youth competitions in synchronized swimming. After being accepted to Stanford University, she saw considerable success in collegiate and national competitions. In the 2009 collegiate championships, she won 2nd in team and figures, 3rd in trio, and 5th in duet. That same year at the national championships she came in 3rd in team and 4th in duet. During the following year's collegiate championships, won 2nd place in the trio competition and 3rd in the duet.
Shortly before the 2011 Pan American Games in Guadalajara, Mexico, she was partnered with Mary Killman to compete as a duet. At those games, Killman and Koroleva won a silver medal in the duet competition, and were part of the United States team that won a silver in the team competition as well. The pair have qualified for the 2012 Summer Olympics in London, and due to the failure of the United States to qualify a team for the team synchronized swimming event, will be the only American women to compete in synchronized swimming at those games.
At London, Koroleva and Killman finished 11th in the duet event.
While training for the Olympics in Indianapolis, Killman and Koroleva shared a room.
Recently, Killman & Koroleva appeared on Whose Line is it Anyway?.