Jan Kouwenhoven (born 16 November 1965, in Sneek) is a sailor from the Netherlands, who represented his country at the 1992 Summer Olympics in Barcelona. Kouwenhoven as crew in the Dutch Men's 470 with his twin brother Ben Kouwenhoven as helmsman took the 16th place. In 1996 Kouwenhoven returned to the Olympics in Savannah, Georgia. Again with his brother, Kouwenhoven took 24th place in the Men's 470.