| Bill Dolphin | |
| Fullname: | William Harold Dolphin |
| Birth Date: | 5 November 1881 |
| Birth Place: | Chewton, Victoria |
| Death Place: | Brighton, Victoria |
| Originalteam: | Yarrawonga |
| Statsend: | 1911 |
| Years1: | 1905–1911 |
| Club1: | South Melbourne |
| Games Goals1: | 100 (0) |
William Harold Dolphin (5 November 1881 – 9 September 1969)[1] was an Australian rules footballer who played with South Melbourne in the Victorian Football League (VFL).
Dolphin was a fullback from Yarrawonga, who captained South Melbourne in 1907 in 1908.[2] He captained his club in the 1907 VFL Grand Final, which they lost narrowly to Carlton. An injury cost him a place in South Melbourne's 1909 premiership team, after playing in their preliminary final win the previous week.[1] In 1911 he became just the fifth South Melbourne player to reach 100 VFL games.[3]