Yuliya Andreyevna Yefimova is a Russian competitive swimmer. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 meters breaststroke in 2012, and silver medals in the 100 meters and 200 meters breaststroke in 2016. She is a five-time World Champion, winning the 50 meters breastsroke (2009 and 2013), the 100 meters breaststroke (2015), and the 200 meters breaststroke (2013 and 2017). She is also a former world record holder in the 50 meters breaststroke.
