| William Turnbull | |
| Birth Date: | 1868 |
| Birth Place: | San Francisco, United States of America |
| Death Date: | 22 June 1941 (aged 73) |
| Death Place: | Wellington, New Zealand |
| Practice: | Thomas Turnbull & Son |
William Turnbull (1868 – 22 June 1941) was an architect based in Wellington, New Zealand. He was the fourth and youngest son of architect Thomas Turnbull. He joined his father's practice in 1882 and became a partner in 1891.[1] He was born in San Francisco where his father was working at the time. He moved to New Zealand with his family in 1871.[2] In his younger years, he played rugby union at Poneke Football Club in Kilbirnie.[3]
Turnbull designed a large house including three rooms to hold a library for bibliophile Alexander Turnbull (no relation) in 1914. The outbreak of World War I caused the construction to be delayed until late 1915, with Alexander Turnbull moving in the following year. Turnbull House was used as a library until 1973, and the collection formed the nucleus of the national library collection.[4] Turnbull House is listed by Heritage New Zealand as a Category I heritage building.
Turnbull moved to his son's house in Willis Street when he was old, and he died there on 22 June 1941,[5] aged 73. He was buried at Karori Cemetery.[6] His wife had died 18 months before him. He was survived by four sons and four daughters.