Mateusz Kusznierewicz (born 29 April 1975 in Warsaw) is a Polish sailor, specialising in the Finn and Star classes.
His first sailing success came in 1985, where he won the Puchar Spójni at the Zalew Zegrzyński in Warsaw. Most recently, he competed at the 2004 Summer Olympics in Athens, winning a bronze medal in the Finn.
For his sport achievements, he received the Order of Polonia Restituta:
Knight's Cross (5th Class) in 1996,
Officer's Cross (4th Class) in 2004.
Kusznierewicz has also won over 20 international regattas, and won World Sailing main award in 1999 the World Sailor of the Year Awards.