Ksenia Yuryevna Pervak is a professional left-handed Kazakhstani tennis player. Pervak's best achievement so far is by winning the 2009 Australian Open junior Grand Slam tournament, where in the final she defeated Laura Robson in straight sets. In 2009, Pervak won the Australian Open junior tournament beating Laura Robson from Britain in the final. At the 2010 French Open Pervak reached the main draw but lost to Maria Sharapova in the first round. At the 2010 Banka Koper Slovenia Open, Pervak reached her first WTA Tour semi-final but retired to Johanna Larsson. Pervak played in the first round of the main draw of the Australian Open for the first time in her career in 2012. The same year Pervak made the semifinals of the $100,000 ITF event in Midland, losing to eventual champion Lucie Hradecká. Pervak then made two consecutive quarterfinals of WTA events in Memphis and Monterrey.