Koen Jansen is a professional footballer from NED and is currently 23 years old. He is on the books of Roda JC and wears shirt number 5. His main role on the pitch is Defender. He measures 176cm in height and weighs 73kg. His stronger foot is Left. His estimated market valuation currently stands at 350K €.

His latest transfer saw him join Roda JC from PSV Eindhoven U20 via on 2024-07-01.

Across the Netherlands Eerste Divisie 2025-2026, Koen Jansen appeared in 19 matches and averaged 0.9 tackles, 0.6 interceptions, 2.2 clearances, and 0.1 blocked shots per game.