| Ilona Korstin | |
| Position: | Shooting guard |
| Height Ft: | 6 |
| Height In: | 0 |
| Weight Lbs: | 174 |
| Nationality: | Russian |
| Birth Date: | 1980 5, df=yes |
| Birth Place: | Leningrad, Russian SFSR, Soviet Union |
| Draft League: | WNBA |
| Draft Year: | 2001 |
| Draft Round: | 2 |
| Draft Pick: | 29 |
| Draft Team: | Phoenix Mercury |
| Career Start: | 1996 |
| Career End: | 2013 |
| Years1: | 1997–2003 |
| Team1: | CJM Bourges Basket |
| Years2: | 2003–2006 |
| Team2: | VBM-SGAU Samara |
| Years3: | 2006–2009 |
| Years4: | 2009–2011 |
| Years5: | 2011–2012 |
| Years6: | 2012 |
| Years7: | 2012–2013 |
| Highlights: |
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Ilona Kalyuvna Korstin (ru|Илона Кальювна Корстин; born May 30, 1980) 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.[1]
She is CEO at the VTB United League