William Knight (1840 - 21 November 1923) was an English architect based in Nottingham.
He was born in Sneinton, Nottingham, the son of William Knight (1808-1897), timber merchant, and Mary Ann (b. 1817).
He had offices at 28 Derby Road, and in 1882 moved to East Circus Street, Nottingham.
He married Elizabeth Lindsay Symington (1842-1894), 3rd daughter of James Symington, on 3 April 1872 in St Helen's Church, Oxendon, Leicestershire and they had the following children:
He retired to Great Bowden, Leicestershire, where he died on 21 November 1923.