William Haywood (died probably in 1823) was an architect who worked in Lincoln, England.

His father John who died in 1817 was mayor of Lincoln twice and worked as a mason.

William Hayward's great grandfather was Abraham Haywood an architect of Whitchurch, Shropshire who came to Lincoln around 1720.

Howard Colvin considered Hayward to be a competent designer in the ‘Regency’ style and that from the re-construction of Kirton in Holland church in 1804 had an understanding of Gothic architecture quite remarkable at that date.

Hayward also rebuilt the tower of Wrangle church in a similar style in 1820. .