Onni Heikkinen is a 28-year-old professional football player from FIN. He plays primarily as a Midfield. His preferred foot is Right.

His most recent move was a from PPJ Akatemia to Free player on 2025-12-31.

Across 20 appearances in the Finnish Ykkonen 2025, Onni Heikkinen registered 1 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.