Jan Ziolkowski is a 21-year-old professional football player from POL. At the international level, he represents Poland. He plays primarily as a Defender. He stands at 194cm tall and weighs 76kg. His preferred foot is Right. His current market value is estimated at 12M .

His most recent move was a Transfer from AS Roma to Monza on 2026-08-31.

Throughout the Serie A 2025-2026, Jan Ziolkowski featured in 25 matches, averaging 0.6 tackles, 0.3 interceptions, and 1.2 clearances per game, while blocking 0 shots per game.