Szymon Kielan (born 21 November 2002) is a Polish tennis player.

Kielan has a career high ATP singles ranking of No.

He also has a career high doubles ranking of No.

[1] Kielan has won one ATP Challenger doubles title at the 2023 Tampere Open with Piotr Matuszewski.

This biographical article relating to Polish tennis is a stub.