Deniz Ertan (born 1 January 2004)[1] is a Turkish swimmer specialized in freestyle swimming.

[3] She won the bronze medal in the 200m individual medley event at the 2019 European Youth Summer Olympic Festival in Baku, Azerbaijan.

[6] From September 2023, she started swimming for coach Bob Bowman at Arizona State.

She won the bronze medal with 8:34.31 in the 800 m freestyle event at the 2024 European Aquatics Championships in Belgrade, Serbia on 18 June 2024.

This biographical article related to a Turkish swimmer is a stub.