Ivor Stanley Smith (27 January 1926 – 18 February 2018) was an English architect, responsible in part for Park Hill in Sheffield under the auspices of J. Lewis Womersley. He was a committed pacifist, and as a conscientious objector in the Second World War, he did farm work at Piggotts, the community in the Chilterns created by the sculptor Eric Gill. In the 1970s he was partnered with Cailey Hutton. Together they were responsible for developments such as Morant House, which is a modern-for-its-time building for social housing.