Ilia Simakin (born 27 October 2003) is a Russian tennis player.

Simakin has a career high ATP singles ranking of No.

He also has a career high doubles ranking of No.

[1] Simakin has won 1 ATP Challenger doubles title at the 2024 President's Cup with Egor Agafonov.

This biographical article relating to Russian tennis is a stub.