Oliver Häyhänen is a professional footballer from FIN and is currently 20 years old. He is on the books of Mikkelin Palloilijat and wears shirt number 11. His main role on the pitch is Forward. He measures 176cm in height and weighs 69kg.

His latest transfer saw him join Mikkelin Palloilijat from Mikkelin Palloilijat U19 via on 2024-01-01.

During the Finnish Ykkosliiga 2024 campaign, Oliver Häyhänen made 9 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.