| Ulf Sundelin | |
| Full Name: | Ulf Artur Sundelin |
| Birth Date: | 26 August 1943 |
| Birth Place: | Nacka, Sweden |
| Height: | 185 cm |
| Weight: | 73 kg |
| Classes: | 5.5 metre, Dragon |
| Club: | Royal Swedish Yacht Club |
| Show-Medals: | yes |
Ulf Artur Sundelin (born 26 August 1943) is a retired Swedish sailor. Together with his younger brothers Peter and Jörgen 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 at the 1972 Olympics.[1] [2]