Jörgen Sundelin (born 15 March 1945) is a retired Swedish sailor.
Together with his brothers Peter and Ulf he won a gold medal in the 5.5 metre class at the 1968 Olympics and a silver medal at the 1969 World Championships.
The brothers also won the 1971 world title in the three-person keelboat (Dragon class) and placed sixth and ninth at the 1972 and 1976 Olympics, respectively.
Besides sailing Jörgen and Peter also played ice hockey for Skuru IK.