| Harry Duigan | |
| Fullname: | Henry Mcleod Black Duigan |
| Birth Date: | 24 December 1875 |
| Birth Place: | Richmond, Victoria |
| Death Place: | Caulfield, Victoria |
| Height: | 180 cm |
| Weight: | 72 kg |
| Position: | Half forward |
| Statsend: | 1898 |
| Years1: | 1897–98 |
| Games Goals1: | 8 (1) |
Henry Mcleod Black Duigan (24 December 1875 – 6 August 1931) was an Australian rules footballer who played with St Kilda in the Victorian Football League (VFL).[1]