| Country: | Russia (until 2023) FIDE (since 2023) |
| Birth Date: | 1993 8, df=y |
| Grandmaster (2018) | |
| Peakrating: | 2567 (October 2022) |
| Fideid: | 24105074 |
Ilia Iljiushenok is a Russian chess grandmaster.
He has represented his country in the 2010 Chess Olympiad, and played in the Chess World Cup 2015, being defeated by Dmitry Jakovenko in the first round.