Mateusz·Kowalczyk is a 22-year-old professional football player from POL. He currently plays for GKS Katowice, wearing the number 77 shirt. At the international level, he represents Poland U21. He plays primarily as a Midfield. His current market value is estimated at 1.5M €.

His most recent move was a Free from Brondby IF to GKS Katowice on 2025-07-01. The reported fee was 1M €.

Across 20 appearances in the PKO Bank Polski EKSTRAKLASA 2025-2026, Mateusz·Kowalczyk registered 0 goals and 0 assists, while completing 8 key passes out of 591 total passes with a passing accuracy of 23.9.