Joona Tiainen is a professional footballer from FIN and is currently 27 years old. His main role on the pitch is Goalkeeper. He measures 183cm in height and weighs 79kg. His stronger foot is Right. His estimated market valuation currently stands at 25K .

His latest transfer saw him join Oskarshamns AIK from Lahti via on 2026-02-18.

In the Finnish Ykkosliiga 2025, Joona Tiainen played 17 matches, averaging 0 interceptions, 0 tackles, and 0 clearances per game.