Ilona Kalyuvna Korstin (; born 30 May 1980), alternatively spelled Korstine, is a retired Russian basketball forward of Estonian origin, who competed for her native Russia at the 2004 Summer Olympics, the 2008 Summer Olympics, and the 2012 Summer Olympics, winning two bronze medals. She ended her career in 2013.
She is CEO at the VTB United League
|- | align=left | | align=left | Phoenix |12||0||6.3||.280||.333||.857||0.9||0.4||0.3||0.0||0.8||1.8 |- class="sortbottom" | align=left | Career | align=left | 1 year, 1 team |12||0||6.3||.280||.333||.857||0.9||0.4||0.3||0.0||0.8||1.8