Koen Jansen is a 22-year-old professional football player from NED. He currently plays for Roda JC, wearing the number 5 shirt. He plays primarily as a Defender. He stands at 176cm tall and weighs 73kg. His preferred foot is Left. His current market value is estimated at 250K €.

His most recent move was a from PSV Eindhoven U20 to Roda JC on 2024-07-01.

Throughout the Netherlands Eerste Divisie 2025-2026, Koen Jansen featured in 19 matches, averaging 0.9 tackles, 0.6 interceptions, and 2.2 clearances per game, while blocking 0.1 shots per game.