| Birth Date: | 1948 10, df=y |
| Birth Place: | The Hague, the Netherlands |
| Height: | 1.83m (06feet) |
| Weight: | 75kg (165lb) |
| Sport: | Rowing |
| Club: | Skadi, Rotterdam |
| Show-Medals: | yes |
Jannes Albert "Jan" Bruyn (born 9 October 1948) is a retired Dutch rower. He competed at the 1972 Summer Olympics in the double sculls event, together with Paul Veenemans, and finished in seventh place.