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).

[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] This Australian rules football biography of a person born in 1881 is a stub.