Marcel Piersa (born 24 October 2006) is a Polish kickboxer.
Piersa competed in many amateur tournaments, most notably in the WAKO Youth World Kickboxing Championships in Budapest, where he won a bronze medal in the -71 kg category.
Piersa made his professional debut on December 7, 2024, at the age of 18 against Eliasz Cholajda under Babilon MMA on the undercard of Babilon MMA 50. He beat Cholajda via TKO after a 3 knockdown rule.
Piersa was scheduled to face Paweà  Konieczny on March 14, 2025 on the undercard of Babilon MMA 51. However, the fight was canceled for unknown reasons.
|- bgcolor="#cfc" | 2024-12-07 || Win ||align=left| Eliasz Cholajda || Babilon MMA 50 || Oà ¼arów Mazowiecki, Poland || TKO (3 knockdown rule)||3 ||2:22