| Medal record | ||
|---|---|---|
| Men's canoe slalom | ||
Representing  Poland
| ||
| World Championships | ||
 |
1999 La Seu d'Urgell | C1 team |
| European Championships | ||
|
2002 Bratislava | C1 |
 |
2002 Bratislava | C1 team |
| Junior World Championships | ||
|
1992 Sjoa | C1 team |
 |
1994 Wausau | C1 |
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.