William Henry Summerville (August 1862 – 21 May 1919) was a member of the Queensland Legislative Assembly.

He was educated at Ipswich Grammar School and established the law firm, Summerville & Delaney.

[1] On 22 July 1892 he married Annie Agnes Herbert[1] (died 1941)[2] and together had two sons and three daughters.

He won the seat of Stanley for Labour in the Queensland Legislative Assembly at the 1902 state election, but was defeated two years later.

[1] A number of street names in the Brisbane suburb of Carina Heights are identical to the surnames of former Members of the Queensland Legislative Assembly.