Justin Janssen is a 19-year-old professional football player from DEN. He currently plays for Nordsjaelland, wearing the number 18 shirt. He plays primarily as a Defender. He stands at 181cm tall and weighs 72kg. His preferred foot is Left. His current market value is estimated at 1.5M €.

His most recent move was a from Nordsjaelland U19 to Nordsjaelland on 2024-06-30.

Throughout the Danish Superliga 2025-2026, Justin Janssen featured in 20 matches, averaging 1.4 tackles, 0.6 interceptions, and 0.9 clearances per game, while blocking 0 shots per game.