| Harry Gregersen | |
| Birth Name: | Einer Harry Gregersen |
| Birth Date: | 7 July 1901 |
| Birth Place: | Holbæk, Denmark |
| Death Place: | Copenhagen, Denmark |
| Sport: | Rowing |
| Club: | Københavns Roklub |
Einer Harry Gregersen (7 July 1901 – 3 September 1970) was a Danish coxswain. He competed at the 1928 Summer Olympics in Amsterdam with the men's eight where they were eliminated in round two.[1] [2]