Ukko Happonen is a professional footballer from FIN and is currently 19 years old. He is on the books of Bologna U20 and wears shirt number 1. At international level, he features for Finland U17. His main role on the pitch is Goalkeeper. His stronger foot is Right. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join Bologna U20 from PK Keski-UusimaaU19 via on 2023-06-30.

In the Italian Campionato Primavera 1 2025-2026, Ukko Happonen played 10 matches, averaging 0 interceptions, 0 tackles, and 0.1 clearances per game.