Mariusz Kujawski (born November 17, 1986) is a Polish sprint canoer who has competed since the late 2000s. He won a silver medal in the K-2 1000 m event at the 2007 ICF Canoe Sprint World Championships in Duisburg.
Kujawski finished fourth in the K-2 1000 m event at the 2008 Summer Olympics in Beijing, but was changed to disqualified upon Adam Seroczyński's testing for positive for clenbuterol in a doping test.