Mariusz Krzysztof Wieczorek (born 14 March 1976 in Opoczno)[1] 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.[2]
Wieczorek competed in two Summer Olympics, earning his best finish of 11th in the C1 event in Atlanta in 1996.
| Season | Date | Venue | Position | Event | ||
|---|---|---|---|---|---|---|
| 1999 | 24 Jun 1999 | bgcolor=silver | 2nd | C1 | ||
| 2001 | 27 May 2001 | bgcolor=silver | 2nd | C1 | ||
| 5 Aug 2001 | 3rd | C1 | ||||
| 2005 | 9 Jul 2005 | bgcolor=gold | 1st | C1 |