Mariusz Wieczorek

Mariusz Krzysztof Wieczorek (born 14 March 1976 in Opoczno) is a Polish slalom canoeist who competed at the international level from 1992 to 2005.

He won a gold medal in the C1 team event at the 1999 ICF Canoe Slalom World Championships in La Seu d'Urgell. He also won an individual gold and a team bronze at the 2002 European Championships in Bratislava.

Wieczorek competed in two Summer Olympics, earning his best finish of 11th in the C1 event in Atlanta in 1996.